Srđan Radonjić (Cyrillic: Срђан Радоњић; born 8 May 1981) is a Montenegrin former professional footballer who played as striker.

He later played for the Montenegro, after the country declared its independence from the state union with Serbia.

Radonjić was a member of the Serbia and Montenegro under-23 team at the 2004 Summer Olympics, which finished fourth in Group C, behind eventual gold medal winners Argentina, Australia and Tunisia.

Radonjić represented and made his debut for Montenegro at the 2007 Kirin Cup in Japan, appearing in matches against the hosts and Colombia.

His final international was an August 2007 friendly match against Slovenia in Podgorica.