Atli Eðvaldsson (3 March 1957 – 2 September 2019) was an Icelandic footballer who played as a midfielder, widely regarded as one of the most influential players to come from Iceland.
During his career, he won the Icelandic championship three times and the Icelandic Cup four times.
After retiring from playing, he became a well-known manager.
In 1999, he guided Knattspyrnufélag Reykjavíkur to its first championship in 31 years.
Atli played 70 games for the Icelandic national team from 1976 to 1991.
He later coached the national team from 1999 to 2003.