| U.S. Maple | State Is Bad | — | 128 | Rock | Skin Graft | 1995 |
| U.S. Maple | When A Man Says 'Ow' | — | 115 | Rock | Skin Graft | 1995 |
| U.S.D.A. | Corporate Thuggin' | — | 94 | Urban | Island Def Jam | 2007 |
| U.S.D.A. | Corporate Thuggin' | Explicit | 94 | — | Island Def Jam | 2007 |
| U.S.D.A. | Corporate Thuggin' | Clean | 94 | — | Def Jam Recordings | 2007 |
| U.S.D.A. | White Girl | — | 77 | Urban | Def Jam Recordings | 2007 |
| U.S.D.A. | White Girl | Clean Edit | 77 | — | Def Jam Recordings | 2007 |
| U2 & A.R. Rahman | Ahimsa | — | 91 | AlternRock | — | 2020 |
| U2 & Green Day | The Saints Are Coming | — | 152 | — | Island/Interscope/Reprise Records | 2007 |
| U2 x Cheat Codes | Love Is Way Bigger Than Anything In Its Way | PopRoXxX Intro Edit | 115 | Electronica | PopRoXxX Intro Edit | 2018 |
|
| U4YA | Live & Celebrate | — | 130 | Electronica | Tazmania | 2016 |
| UBO & Mosa | Mi Hace Asi/Ten Cuidao | — | 100 | Latin Pop | Latin Flava Records | 2005 |
| UGK Ft. OutKast | International Player's Anthem | — | 78 | — | — | — |
| UGK ft. Outkast | Int'l Players Anthem (I Choose You) | Clean Edit | 78 | — | UGK/Jive/Zomba Recordings | 2007 |
| UGK ft. Outkast | Int'l Players Anthem (I Choose You) | Instrumental | 78 | — | UGK/Zomba/Jive Records | 2007 |
| UGK ft. Outkast | Int'l Players Anthem (I Choose You) | Acapella | 78 | — | UGK/Zomba/Jive Records | 2007 |
| UGK ft. Outkast | Int'l Players Anthem (I Choose You) | — | 78 | — | UGK/Zomba/Jive Records | 2007 |
| UGK ft. Outkast | International Players Anthem | — | 78 | Urban | Jive/Laface/Zomba | 2007 |
| UGK ft. Talib Kweli & Raheem DeVaughn | Real Women | Instrumental | 78 | — | UGK/Zomba/Jive | 2007 |
| UGK ft. Talib Kweli & Raheem DeVaughn | Real Women | — | 78 | — | UGK/Zomba/Jive | 2007 |
|
| UK Bassheads | Is There Anybody Out There? | — | 121 | — | Capitol Records | 2006 |
| UMEK ft. Jameisha Trice | Live The Life | — | 123 | Dance | Spinnin | 2015 |
| UMEK ft. Jameisha Trice | Live The Life | * * | 123 | — | Spinnin | 2015 |
| UNA | You're Not Alone | Jose Amnesia Vocal Edit | 131 | — | Nervous | 2008 |
| UNK ft. Andre 3000, Jim Jones & Big Boi | Walk It Out | Remix - Clean Edit | 80 | — | Big Oomp/KOCH Records | 2007 |