Sign up for Autoship by 4/16 & save BIG on first three orders, see terms* >

giving your best friend their best life

Nutrition led by Science & loved by pets. Hill’s Science Diet helps keep pets healthy & happy with flavourful food to meet their changing needs.

  • $0 - $50+

    $0$25$50+

Hill's Science Diet

(67 results)
Hill's® Science Diet® Sensitive Stomach & Skin Adult Dry Dog Food - Chicken & Barley

Hill's® Science Diet® Sensitive Stomach & Skin Adult Dry Dog Food - Chicken & Barley

(2078)
$42.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Hill's Science Diet Perfect Weight & Joint Support Large Breed Adult Dry Dog Food - Chicken & Rice

Hill's Science Diet Perfect Weight & Joint Support Large Breed Adult Dry Dog Food - Chicken & Rice

(199)
$124.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Perfect Weight Adult Dry Dog Food - Chicken
3 sizes 1 flavor

Hill's Science Diet Perfect Weight Adult Dry Dog Food - Chicken

(1480)
$42.99 - $122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Sensitive Stomach & Skin Large Breed Adult Dry Dog Food - Chicken & Barley

Hill's® Science Diet® Sensitive Stomach & Skin Large Breed Adult Dry Dog Food - Chicken & Barley

(578)
$122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Sensitive Stomach & Skin Small Bites Adult Dog Dry Food - Chicken & Barley
2 sizes 1 flavor

Hill's® Science Diet® Sensitive Stomach & Skin Small Bites Adult Dog Dry Food - Chicken & Barley

(1395)
$42.99 - $122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Perfect Digestion Adult Dry Dog Food - Salmon, Brown Rice & Whole Oats
3 sizes 1 flavor

Hill's® Science Diet® Perfect Digestion Adult Dry Dog Food - Salmon, Brown Rice & Whole Oats

(891)
$42.99 - $122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Perfect Weight & Joint Support Adult Dry Dog Food - Chicken & Brown Rice
3 sizes 1 flavor

Hill's Science Diet Perfect Weight & Joint Support Adult Dry Dog Food - Chicken & Brown Rice

(285)
$44.99 - $124.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Light Large Breed Adult Dry Dog Food - Chicken & Barley

Hill's® Science Diet® Light Large Breed Adult Dry Dog Food - Chicken & Barley

(356)
$120.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Hill's® Science Diet® Small Bites 7+ Senior Dry Dog Food - Chicken Recipe

Hill's® Science Diet® Small Bites 7+ Senior Dry Dog Food - Chicken Recipe

(1483)
$120.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Perfect Weight Small & Mini Adult Dry Dog Food - Chicken Recipe
2 sizes 1 flavor

Hill's® Science Diet® Perfect Weight Small & Mini Adult Dry Dog Food - Chicken Recipe

(1334)
$44.99 - $81.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Sensitive Stomach & Skin Small & Mini Adult Dog Dry Food - Chicken & Rice
2 sizes 1 flavor

Hill's® Science Diet® Sensitive Stomach & Skin Small & Mini Adult Dog Dry Food - Chicken & Rice

(1311)
$44.99 - $81.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Perfect Weight Small Bites Adult Dry Dog Food - Chicken
2 sizes 1 flavor

Hill's Science Diet Perfect Weight Small Bites Adult Dry Dog Food - Chicken

(540)
$42.99 - $122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Light Adult Dry Dog Food - Chicken & Barley
2 sizes

Hill's® Science Diet® Light Adult Dry Dog Food - Chicken & Barley

(946)
$73.99 - $120.99
Sign in & Save 25% on your first Autoship Order!
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Puppy Dry Dog Food - Chicken & Brown Rice
3 sizes 1 flavor

Hill's Science Diet Puppy Dry Dog Food - Chicken & Brown Rice

(1373)
$37.99 - $112.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Healthy Mobility Large Breed Adult Dry Dog Food - Chicken Meal, Rice & Barley

Hill's® Science Diet® Healthy Mobility Large Breed Adult Dry Dog Food - Chicken Meal, Rice & Barley

(515)
$122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Perfect Weight Large Breed Adult Dry Dog Food - Chicken

Hill's Science Diet Perfect Weight Large Breed Adult Dry Dog Food - Chicken

(435)
$122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Perfect Digestion Adult Dry Dog Food - Chicken & Brown Rice
3 sizes 1 flavor

Hill's® Science Diet® Perfect Digestion Adult Dry Dog Food - Chicken & Brown Rice

(666)
$42.99 - $122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Sensitive Stomach & Skin Puppy Dry Dog Food - Salmon & Brown Rice
2 sizes

Hill's Science Diet Sensitive Stomach & Skin Puppy Dry Dog Food - Salmon & Brown Rice

(61)
$42.99 - $81.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Hill's Science Diet Sensitive Stomach & Skin Adult Dry Dog Food - Salmon & Brown Rice
3 sizes

Hill's Science Diet Sensitive Stomach & Skin Adult Dry Dog Food - Salmon & Brown Rice

(6)
$42.99 - $122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Shipping On Orders $49+.
Hill's® Science Diet® Perfect Digestion 7+ Senior Dry Dog Food - Chicken, Whole Oats & Brown Rice
2 sizes 1 flavor

Hill's® Science Diet® Perfect Digestion 7+ Senior Dry Dog Food - Chicken, Whole Oats & Brown Rice

(448)
$42.99 - $122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® 7+ Senior Dry Dog Food - Chicken, Barley & Brown Rice

Hill's® Science Diet® 7+ Senior Dry Dog Food - Chicken, Barley & Brown Rice

(1161)
$73.99
$81.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Light Small Bites Adult Dry Dog Food - Chicken & Barley
2 sizes

Hill's® Science Diet® Light Small Bites Adult Dry Dog Food - Chicken & Barley

(1148)
$37.99 - $73.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Adult Dog Dry Food - Salmon & Brown Rice Recipe
2 sizes

Hill's Science Diet Adult Dog Dry Food - Salmon & Brown Rice Recipe

(130)
$37.99 - $73.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Oral Care Adult Dry Dog Food - Chicken, Brown Rice & Barley

Hill's Science Diet Oral Care Adult Dry Dog Food - Chicken, Brown Rice & Barley

(107)
$122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Small Bites Puppy Dry Dog Food - Chicken & Brown Rice
2 sizes 1 flavor

Hill's Science Diet Small Bites Puppy Dry Dog Food - Chicken & Brown Rice

(1047)
$37.99 - $66.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Small & Mini Puppy Dry Dog Food - Chicken & Brown Rice
2 sizes 1 flavor

Hill's Science Diet Small & Mini Puppy Dry Dog Food - Chicken & Brown Rice

(654)
$39.99 - $66.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Hill's Science Diet Large Breed Puppy Dry Dog Food - Chicken & Brown Rice

Hill's Science Diet Large Breed Puppy Dry Dog Food - Chicken & Brown Rice

(746)
$73.99
$81.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Hill's® Science Diet® Adult Dry Dog Food - Chicken & Barley

Hill's® Science Diet® Adult Dry Dog Food - Chicken & Barley

(1814)
$37.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Small & Mini 7+ Senior Dry Dog Food - Chicken & Brown Rice

Hill's® Science Diet® Small & Mini 7+ Senior Dry Dog Food - Chicken & Brown Rice

(1121)
$39.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Hill's® Science Diet® Large Breed Adult Dry Dog Food - Lamb & Brown Rice

Hill's® Science Diet® Large Breed Adult Dry Dog Food - Lamb & Brown Rice

(78)
$120.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Puppy Dry Dog Food - Lamb Meal & Brown Rice
3 sizes

Hill's Science Diet Puppy Dry Dog Food - Lamb Meal & Brown Rice

(126)
$37.99 - $112.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Sensitive Stomach & Skin Adult Dry Dog Food - Chicken & Barley
3 sizes

Hill's Science Diet Sensitive Stomach & Skin Adult Dry Dog Food - Chicken & Barley

(214)
$42.99 - $122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Senior Vitality Adult 7+ Dry Dog Food - Chicken & Rice
3 sizes

Hill's® Science Diet® Senior Vitality Adult 7+ Dry Dog Food - Chicken & Rice

(420)
$42.99 - $122.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Adult Dry Dog Food - Chicken & Barley
2 sizes

Hill's® Science Diet® Adult Dry Dog Food - Chicken & Barley

(482)
$73.99 - $120.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Large Breed Adult Dry Dog Food - Chicken & Barley

Hill's® Science Diet® Large Breed Adult Dry Dog Food - Chicken & Barley

(12)
$120.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Adult Dry Dog Food - Lamb & Brown Rice

Hill's® Science Diet® Adult Dry Dog Food - Lamb & Brown Rice

(196)
$120.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Adult Dog Dry Food - Salmon & Brown Rice Recipe
2 sizes

Hill's Science Diet Adult Dog Dry Food - Salmon & Brown Rice Recipe

(2)
$37.99 - $120.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's Science Diet Perfect Digestion Small & Mini Adult Dog Dry Food - Chicken & Brown Rice Recipe
2 sizes

Hill's Science Diet Perfect Digestion Small & Mini Adult Dog Dry Food - Chicken & Brown Rice Recipe

(39)
$44.99 - $81.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® 7+ Senior Dry Dog Food - Chicken, Barley & Brown Rice

Hill's® Science Diet® 7+ Senior Dry Dog Food - Chicken, Barley & Brown Rice

(200)
$120.99
Get 35% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16
Enjoy Free Same-day delivery!
+ 1 more
Hill's® Science Diet® Senior Vitality Small & Mini Adult 7+ Dry Dog Food - Chicken & Rice

Hill's® Science Diet® Senior Vitality Small & Mini Adult 7+ Dry Dog Food - Chicken & Rice

(266)
$44.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
  2. 1
  3. 2
Download on the App StoreDownload on the Google Play Store
Copyright © 2026 PetSmart LLC
RecallsTerms of Use Privacy Policy Interest-Based Ads Canada Modern Slavery Act
*See Promotional Terms Page for details. Exclusions may apply. While supplies last. Prices & selection may vary by store & online.