Arvi Mägi (born February 25, 1949 in Tartu) is an Estonian actor and theatre director.

In 1971 he graduated from Tallinn Pedagogical Institute with a degree in stage arts. From 1971 until 1989 and from 1993 until 1994, he was an actor at the Rakvere Theatre; from 1989 until 1993, he was also its artistic leader (Estonian: kunstiline juht). From 1994 until 2015, he worked at Ugala Theatre in Viljandi. Since 2016, he is engaged at the Kuressaare Town Theatre. Besides stage roles he has also acted on films and in television series.