Aaron Keller (born March 1, 1975 in Kamloops, British Columbia) was a defenceman who was born in Canada but became a Japanese citizen and competed for his new country.
He played junior hockey for the Kamloops Blazers from 1992 to 1996. The Blazers won the Memorial Cup in 1994 and 1995.
Undrafted by an NHL club, Keller played in the minor pros in North America in 1996-97. The following season he moved to Japan and has played there ever since.