| Uberzone | Bounce | Max Graham Mix | 134 | — | Astralwerks Records | 2001 |
| Ultrasonik | Pulsating Rhythm | Mark Shimmon & 3rd Degree Mix | 135 | — | Joof (uk) | 2001 |
| Ultrasonus | Wonderland | Ultrasonus Mix | 140 | — | United States Of Dance (uk) | 2000 |
| Uncion Tropical | Vamos Pa' Lante | — | 146 | — | CanZion | 2008 |
| Uncle Murda ft. French Montana | Money Work | — | 72 | Urban | Tuneheadz/GMG/Epic | 2013 |
| Uncle Reece ft. Jor'Dan Armstrong | I Can't Help Myself | — | 58 | Other | Obed Music Group | 2015 |
| Unconditional | Sole | Nari & Milani Mix | 127 | — | Molto Recordings | 2008 |
| Unifunkation Feat. Alexander East | Feel Me | Tm Vocal | 126 | — | Northcott Productions | 2002 |
| United Nations Project | United Nations Of House | Original Mix | 140 | — | Manifesto Records | 1997 |
| Uniting Nations | Ai No Corrida | — | 128 | Dance | Gut Records | 2006 |
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| Uniting Nations | Blaze Of Glory | Original Extended Mix | 130 | — | Sporting Riff Raff | 2010 |
| Uniting Nations | Do It Yourself (Go Out & Get It) | — | 129 | Dance | Gut (UK) | 2008 |
| Uniting Nations | Do It Yourself (Go Out & Get It) | Extended Edit* | 129 | — | Gut (UK) | 2008 |
| Uniting Nations | Do It Yourself (Go Out & Get It) | Extended Mix | 129 | — | Gut (UK) | 2008 |
| Uniting Nations | Do It Yourself (Go Out & Get It) | Extended Edit** | 129 | — | Gut (UK) | 2009 |
| Uniting Nations | Out Of Touch | — | 128 | Dance | Ultra | 2005 |
| Uniting Nations | Out Of Touch | Extended Mix | 130 | Dance | Ultra | 2005 |
| Uniting Nations | Out Of Touch | Clean Version | 130 | Dance | Ultra | 2005 |
| Uniting Nations | Out Of Touch | 7" | 130 | Dance | Gusto | 2004 |
| Uniting Nations | You & Me | 12" | 128 | Dance | Gusto | 2005 |
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| Uniting Nations | You & Me | — | 128 | — | Gut Records UK | 2005 |
| Uniting Nations ft. Nate James | Mercy | Extended Mix | 130 | — | Sporting Riff Raff | 2011 |
| Unity ft. Amuka, Sly Stone, Bebe & George Clinton | Free The Funk | Clean Version | 99 | Urban | Unity Lewis Arts & Entertainment | 2016 |
| Unity ft. Amuka, Sly Stone, Bebe & George Clinton | Free The Funk | Explicit | 99 | Urban | Unity Lewis Arts & Entertainment | 2016 |
| Universal Xpression | Oohy Aahy | — | 122 | — | Nevus Records | 2006 |