Einar Árni Jóhannsson (born January 8, 1977) is an Icelandic professional basketball coach who is currently the head coach of Úrvalsdeild karla club Njarðvík.
He won the Icelandic men's championship in 1998 with Njarðvík as an assistant to Friðrik Ingi Rúnarsson, and in 2006 as Njarðvík's head coach.
He won the Icelandic Men's Basketball Cup in 2005 with Njarðvík and was named the Úrvalsdeild karla Coach of the Year in 2007.