Ali Ata Demirer (born 6 July 1972) is a Turkish filmmaker, stand-up comedian, actor, and musician.

His first professional performances were organised with the assistance of E.Ş.EK Theatre Group founder Uğur Uludağ and while performing in musical theater with the group in Assos he was offered the lead role in the 1995 production of Funny Money (Komik Para) at the Dormen Theatre.

His greatest success came with a three-season run from 2004 to 2006 as the loveable Volkan in the popular Atv sitcom Avrupa Yakası, which also led to his first cinematic lead role as Güngör in Neco Çelik's Kısık Ateşte 15 Dakika (2006).

During this time he also continued his music career with the release of the studio album Makara (2005) and the four-track maxi-single Exit (2006) as well as the TV show Hacıyatmaz (2007).

In April 2007, he started a stand-up tour called Ata Demirer Show which he took around Turkey and to the Netherlands, Germany and France.