Erik Ersberg (born March 8, 1982) is a Swedish retired professional ice hockey goaltender.

During his playing career, he made a total of 54 appearances in the National Hockey League with the Los Angeles Kings.

Ersberg started his ice hockey career playing for VIK Västerås HK in HockeyAllsvenskan (tier two in the Swedish league structure).

The following season he got his breakthrough and became starting goaltender for HV71 and was also selected for the Sweden national team in the 2006 Karjala Tournament and Channel One Cup.

February 23, 2008, Ersberg made his NHL debut against the Chicago Blackhawks at Staples Center in Los Angeles, California.

After spending the 2013–14 season in Germany, representing the Iserlohn Roosters, Ersberg returned to Sweden and spent two years with HV71 of the Swedish Hockey League (SHL).