Adrian Ungur (born 22 January 1985) is a Romanian former tennis player who mainly competed on the ATP Challenger Tour.

He was a member of the Romania Davis Cup Team and was coached by Fabrizio Fanucci.

In June 2012, Ungur reached his career-high ATP singles ranking of World No.

In 2006 Adrian married Liana, who is also a professional tennis player and daughter of Romanian football legend Ilie Balaci.

Following some good results in Challenger events, Adrian entered into the main draw at the 2012 French Open, his first main draw appearance at Grand Slam level.