Tanya Bogomilova Dangalakova (Bulgarian: Таня Богомилова Дангалакова) (born 30 June 1964) is a former breaststroke swimmer from Bulgaria, who won the gold medal in the 100 m breaststroke at the 1988 Summer Olympics in Seoul, South Korea.
At the 1985 European Aquatics Championships she prevented East Germany from sweeping all women's events for the third European Championships in a row, by winning the 200 meter breaststroke by 0.45 seconds.