Bartu Küçükçağlayan (born 23 April 1983, Eskişehir) is a Turkish musician and actor.

Born in Eskişehir, Küçükçağlayan won the Istanbul University State Conservatory in 2001 and went to Istanbul. During his education, he took part in the play Captain from Inishmore in the Kent Players group in 2004. Küçükçağlayan, who took part in the ensemble's Gambler's Choice play between 2005-2007, has also started to act in television series since 2004. He played in the TV series June Night, Çapkın and Binbir Gece. In the 2007-2008 season, he portrayed Adam, one of the leading roles, in the play The Shape of Things by the New Generation Theater troupe. He played the character of Orçun in the TV series Yalan Dünya, which was broadcast between 2012 and 2014. In 2018, he played in the internet series Innocent. He won four awards for his acting in Gambler's Choice and was praised for The Shape of Things.

Küçükçağlayan won several awards, including the best actor award, at the 47th Antalya Golden Orange Film Festival for his role as Mertkan in the movie "The Majority".

He is also the lead singer of the band Büyük Ev Ablukada under the pseudonym Monster Banavar and plays the guitar. During the quarantine restrictions that started in March 2020, he created a different broadcast concept with the publications called Force Majeure, which he made with Melikşah Altuntaş on his Instagram page, and was watched by thousands of people every night and became a phenomenon.