- hH
- HHac
- HacHad
- HadHag
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- HakHal
- HalHal
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- HurHus
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- HyrHZY
- Harmer, Georgia
- Harmer, Sarah (Canadian singer, songwriter and activist)
- Harmer, Sarah and Euringer, Jason
- Harmful
- Harmful Logic
- Harmjoy
- Harmless
- Harmo Draüs
- harmoe (J-pop voice actress duo)
- Harmon, Montice (Recording artist, singer-song writer, author)
- Harmon, Sally
- Harmon, Trent (American Idol)
- Harmon, Zac (blues singer and guitarist)
- Harmonia (German rock group)
- Harmonia & Eno '76
- Harmonia do Samba
- Harmonic 33
- Harmonic Resonators
- Harmonicats, The
- Harmonics, The (Stanford University Acapella Group)
- Harmonie Ensemble New York
- Harmonies, The
- Harmonik
- Harmonious Thelonious (Düsseldorf-based artist Stefan Schwander)
- Harmonious Wail
- Harmonium (Quebec group)
- Harmonize (European house act)
- Harmonize (Cyprus metal band)
- Harmonize (Tanzanian musician)
- Harmonizing Four, The (gospel quartet)
- Harmony (Swedish christian metal band)
- Harmony (Australian band)
- Harmony (Former Girlpool member)
- Harmony Dies, And
- Harmony Glen
- Harmony Glen feat. Rapalje
- Harmony Grass
- Harmony Sisters
- Harmony Woods (Philadelphia, Pennsylvania)
- Harmony's Cuddle Party
- Harms
- Harms & Kapelle
- Harms, Brandon
- Harms, Joni
- Harms, Mason
- Harnell, Joe and Orchestra, His
- Harnell, Tony
- Harnell, Tony & Mercury Train, The
- Harnell, Tony & Senoue, Jun
- Harnen, Jimmy
- Harner, Billy
- Harness, Brianna
- Harnett, Caitlin
- Harnett, Sinéad
- Harnett, Sinéad feat. EARTHGANG
- Harnett, Sinéad feat. Lucky Daye
- Harnett, Sinéad feat. Masego & VanJess
- Harnick, Sheldon & Bock, Jerry
- Harnoncourt, Nikolaus (conductor)
- Harnoor (Punjabi Singer)
- Harnoor & Fuego, Gaby
- Harnoy, Ofra (cellist)
- haroinfather
- Harold Martinez
- Harold y Elena (American Christian music duo)
- Harold y Elena (Christian music duo from Houston)
- Haroon (Pakistani singer-songwriter and composer)
- Harouki Zombi
- Haroun (French rapper)
- Harp (Tim Smith)
- Harp, Everette
- Harp, Jessica
- Harp, Martin
- Harp, Susana
- Harpal, Preet
- Harpans Kraft
- Harpe, Erin
- Harpe, Erin, and the Delta Swingers
- Harper (world blues singer / didgeridoo player)
- Harper (metalcore)
- Harper & Green
- Harper and Midwest Kind
- Harper and the Moths
- Harper Blynn
- Harper Brothers, The
- Harper‐Barnes, Howard
- Harper‐Jones, Morgan
- Harper, Ben (singer, Weissenborn guitar player, The Innocent Criminals)
- Harper, Ben (guitarist for pop/punk band Yellowcard)
- Harper, Ben & Harper, Ben and Relentless7
