• 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, 9 P)

S

• The Saturdays (4 C, 3 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, 3 P)
• Westlife (4 C, 3 P, 1 F)