1950–51 Ulster Cup

The 1950–51 Ulster Cup was the third edition of the Ulster Cup, a cup competition in Northern Irish football.

Glentoran won the tournament for the 1st time, defeating Linfield 2–1 in the final.

Playoff

 * Glentoran 2–0 Ards

Playoff

 * Linfield 0–0 Glenavon

Replay

 * Linfield 4–1 Glenavon

Playoff

 * Cliftonville 2–1 Larne