The music of Nintendogs was composed by Hajime Wakai, with Ryoji Yoshitomi serving as sound director.
- nintendogs
- Shop & Kennel
- Learned a Trick!
- Reading
- Walking
- Got Supplies
- Walking: Other Dog Encounter (Curious)
- Walking: Other Dog Encounter (Great Mood)
- Walking: Other Dog Encounter (Friendly)
- Walking: Other Dog Encounter (Slight Dislike)
- Walking: Other Dog Encounter (Unfriendly)
- Agility Trials
- Back Home
- Bathing
- Dog Show: Judges' Commentary
- Dog Show: Beginner Fanfare
- Dog Show: Beginner
- Dog Show: Expert Fanfare
- Dog Show: Expert
- Dog Show: Championship Fanfare
- Dog Show: Championship
- Dog Show: Command Mastery!
- Dog Show: Held Trick!
- Dog Show: Time's Up!
- Dog Show: Closing Fanfare
- Dog Show: Winner
- Dog Show: Did Not Place
- Toy: Mario Kart [arrangement of "Circuit" from Mario Kart: Double Dash‼]
- Toy: Bowser Kart [arrangement of "Bowser's Castle" from Mario Kart: Double Dash!!]
- Toy: Peach Kart [arrangement of "Peach Beach" from Mario Kart: Double Dash!!, by Shinobu Tanaka]
- Toy: Combat Copter [arrangement of "Ride of the Valkyries", by Richard Wagner]
- Music Box: nintendogs
- Music Box: Mario's Theme [arrangement of "Ground BGM" from Super Mario Bros., by Koji Kondo]
- Music Box: Puppy Waltz [arrangement of "Minute Waltz", by Frédéric Chopin]
- Record: Street Marker
- Record: Growler
- Record: Smilin' Dog
- Record: Friendly Whiff
- Record: Chow
- Record: Surprise [arrangement of "Symphony No. 94", by Joseph Haydn]
- Record: Naptime
- Record: Colonel Bogey [arrangement of "Colonel Bogey March", by F. J. Ricketts]
- Record: Toreador [arrangement of "Toreador Song", by Georges Bizet]
- Record: Flower Waltz [arrangement of "Waltz of the Flowers", by Pyotr Ilyich Tchaikovsky]
- Record: nintendogs
- Record: Waves
- Record: Modest Decor
- Record: Shedded Fur
- Record: Giant Socks
- Record: nintendogs (Demo Version)
