The 1955 Cupa României was the 18th edition of Romania's most prestigious football cup competition.
The title was won by CCA București against Progresul Oradea.
If a match is drawn after 90 minutes, the game goes in extra time, and if the scored is still tight after 120 minutes, the team who plays away will qualify.
In case the teams are from same city, there a replay will be played.
From the first edition, the teams from Divizia A entered in competition in sixteen finals, rule which remained till today.