The 13th-ranked Russian is a two-time champion at the AEGON Classic, having won back-to-back titles in 2004 and 2005.
Sharapova said she is looking forward to playing "at this important time in the grass court season in the lead up to The Championships, Wimbledon."
Story continues below ↓advertisement | your ad hereThe Birmingham tournament runs from June 7-13 at the Edgbaston Priory. Wimbledon starts June 21.
Sharapova won Wimbledon in 2004 for her first Grand Slam title. She has been plagued by injuries in the past year.
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