Radu Beligan (Romanian pronunciation: [ˈradu beliˈɡan]; 14 December 1918 – 20 July 2016) was a Romanian actor, director, and essayist, with an activity of over 70 years in theatre, film, television, and radio. On 15 December 2013, confirmed by Guinness World Records, the actor received the title of "The oldest active theatre actor" on the planet. He was elected honorary member of the Romanian Academy in 2004.

One of the disciples of actress Lucia Sturdza-Bulandra and writer Eugène Ionesco, Radu Beligan is generally regarded as one of the major names of the Romanian theatre with a complex repertoire, classic and modern. He played alongside important actors, with performances both in the country and abroad.