- X-Tank
- X-tasia
- X-Tatic
- X-Taz
- X Tech
- X-Teens
- X-Tence
- X-Tension
- X-Tension Party
- X-Ternal Friction
- X-TERRA
- X-TG
- X: THC
- X the Owl
- X-Thug
- X-Town Posse
- X-Tra Agenda
- X-Tra Combo
- X-Tra-Vaganza
- X Trackers
- X-Tract
- X Traction
- X-Tractor
- X Train
- X-Trak
- X-Trance
- X-Trax
- X-Traxx
- X-trct
- X-Tree
- X-Treme
- X-Treme
- X-Treme Badness
- X-Treme Bass
- X-Treme DJ Team
- X-Tribe
- X Trude
- X Tu Perra
- X-Union
- X-Value
- X Vandals
- X-Vendicatore
- X-vibz
- X-Vision
- X-Voodoo
- X-Wave
- X-Waves
- X Way
- X-Wife
- X-Wild
- X-Wing
- X-World/5
- X-Xpress
- X-Y
- X-YLE
- X-Zen-Tric
- X-Zone
- X1
- X1 Project
- X1 XRAY
- X10
- X:144
- X:144 & SPS
- X=18
- X1O
- X2
- X2
- X2
- X2 Johnny Neel Matt Abts
- X2000
- X24 Marrer
- X27
- X2B
- X2C
- X2Y
- X3
- X4 Hip Hop
- X5
- X6
- X7
- XA Cute
- Xaal
- X.A.B.
- Xabaltx
- Xabier Lete
- Xabier Montoia
- Xacobe Martínez
- Xacobe Martínez Antelo
- Xactabox
- Xaddax
- xAFBx
- Xaga
- Xahno
- Xaile
- Xak Bjerken
- Xalam
- Xalapa Symphony Orchestra
- Xalbador
- Xalem
- Xalid Rashid