Category:20th century in Northern Ireland

• Years of the 20th century in Northern Ireland (80 C, 80 P)

/

• 20th-century disestablishments in Northern Ireland (8 C)

0–9

• 1920s in Northern Ireland (17 C, 9 P)
• 1930s in Northern Ireland (18 C, 10 P)
• 1940s in Northern Ireland (18 C, 11 P)
• 1950s in Northern Ireland (17 C, 11 P)
• 1960s in Northern Ireland (19 C, 11 P)
• 1970s in Northern Ireland (20 C, 13 P)
• 1980s in Northern Ireland (19 C, 12 P)
• 1990s in Northern Ireland (20 C, 17 P)

A

• 20th century in County Antrim (5 C, 16 P)
• 20th-century architecture in Northern Ireland (4 C, 8 P)
• 20th century in County Armagh (4 C, 19 P)

B

• 20th century in Belfast (3 C, 44 P)

C

• 20th-century crimes in Northern Ireland (6 C)

D

• 20th century in County Down (3 C, 23 P)

E

• 20th-century establishments in Northern Ireland (8 C)

F

• 20th century in County Fermanagh (1 C, 15 P)

L

• 20th-century literature from Northern Ireland (1 C)
• 20th century in County Londonderry (5 C, 12 P)

P

• 20th-century people from Northern Ireland (4 C, 11 P)

T

• 20th century in Northern Ireland television (1 C)
• 20th century in County Tyrone (3 C, 22 P)

W

• Northern Ireland in World War II (9 C, 3 P)