| Unearthly |
10 |
| Unearthly Trance |
33 |
| Uness |
2 |
| Uneven Structure |
16 |
| Unexist |
2 |
| Unexpect |
30 |
| Unextraordinary Gentlemen |
5 |
| Unfathomable Ruination |
19 |
| Unfinished Thought |
24 |
| Ungu |
97 |
| Unheard Before the Wake |
4 |
| Unheilig |
210 |
| Unherz |
32 |
| Unhindered |
10 |
| Unholy |
23 |
| Unholy Ghost |
5 |
| Unholy Matrimony |
9 |
| Unhuman |
4 |
| Unicante |
5 |
| Unicorn |
26 |
| Unicorn Kid |
2 |
| Unida |
16 |
| Unified Theory |
13 |
| Uniform Choice |
12 |
| Uniform Motion |
24 |
| Uniikki |
52 |
| Uniklubi |
64 |
| Union |
18 |
| Union 13 |
46 |
| Union Carbide Productions |
2 |
| Union J |
35 |
| Union Jack |
5 |
| Union Square |
3 |
| Union Youth |
16 |
| Union of Knives |
4 |
| Uniqplan |
2 |
| Unique |
24 |
| Unique II |
5 |
| Unisex |
2 |
| Unisonic |
23 |
| Unit |
22 |
| Unit 4+2 |
4 |
| Unit Five |
2 |
| Unit:187 |
8 |
| United |
7 |
| United Beats |
2 |
| United Flavour |
6 |
| United Nations |
25 |
| United Progressive Fraternity |
3 |
| United State of Electronica |
4 |
| Uniting Nations |
11 |
| Unitopia |
37 |
| Units |
3 |
| Unity |
8 |
| Unity Klan |
8 |
| Unity Pacific |
2 |
| Unity of inferior |
6 |
| Unité 2 Feu |
2 |
| Univers Zéro |
10 |
| Universal Gospel Choir |
10 |
| Universal Hall Pass |
13 |
| Universal Mind Project |
6 |
| Universal Poplab |
22 |
| Universe |
23 |
| University of Virginia Hullabahoos |
2 |
| University of Wisconsin Madhatters |
3 |
| University of Wisconsin Marching Band |
2 |
| Universum |
25 |
| Unjoy |
4 |
| Unjust |
45 |
| Unkle Bob |
23 |
| Unknown |
19 |
| Unknown Artist |
18 |
| Unknown Error |
2 |
| Unknown Hinson |
26 |
| Unknown Instructors |
2 |
| Unknown Mortal Orchestra |
29 |
| Unknown Prophets |
28 |
| Unleash The Sky |
7 |
| Unleash the Archers |
32 |
| Unleashed |
102 |
| Unleashed Power |
3 |
| UnlimiteD |
5 |
| Unlimited |
2 |
| Unlimited Beat |
2 |
| Unlimited Touch |
3 |
| Unlimited tone |
2 |
| Unlocking the Truth |
6 |
| Unlord |
24 |
| Unlucky Morpheus |
3 |
| Unmoored |
18 |
| Unni Menon |
3 |
| Unni Wilhelmsen |
15 |
| Unnikrishnan |
6 |
| Unnikrishnan & Harini |
2 |
| Unnikrishnan & Sadhana Sargam |
2 |
| Unnikrishnan & Sujatha |
2 |
| Uno Svenningsson |
56 |
| Unpretty Rapstar |
5 |
| Unquiet Nights |
8 |