Cristian-Alberto Bumbac (born 16 March 2000) is a Romanian rugby union football player. He plays as a centre for professional SuperLiga club Steaua București.
Cristian Bumbac started playing rugby aged 10 for local rugby club, RC Pantelimon. He moved to Bucharest and continued his junior years at CS Olipmia for almost two seasons. He started his senior career after being signed by SuperLiga side, Steaua Bucharest in late 2018. He also played for the Romania national under-20 rugby union team.