• Wikipedia categories named after musical groups from Northern Ireland‎ (8 C)

B

• B*Witched‎ (3 C, 2 P)
• Bell X1 (band)‎ (3 C, 3 P)
• Boyzone‎ (4 C, 6 P)

C

• Clannad‎ (3 C, 6 P)
• The Corrs‎ (5 C, 6 P)
• The Cranberries‎ (5 C, 4 P)

D

• The Dubliners‎ (4 C, 4 P)

F

• Five Go Down to the Sea?‎ (2 C, 1 P)

G

• Girls Aloud‎ (6 C, 5 P)

J

• Jedward‎ (3 C, 8 P)

L

• Liberty X‎ (2 C, 6 P)

M

• Moloko‎ (3 C, 4 P)
• My Bloody Valentine (band)‎ (4 C, 9 P)

O

• One Direction‎ (5 C, 7 P)

S

• The Saturdays‎ (4 C, 4 P)
• The Script‎ (3 C, 5 P)

U

• U2‎ (8 C, 25 P)

V

• Virgin Prunes‎ (3 C, 1 P)

W

• The Wanted‎ (2 C, 4 P, 3 F)
• The Waterboys‎ (3 C, 4 P)
• Westlife‎ (4 C, 3 P, 1 F)