linda de boer (born 1954) is a retired dutch swimmer who won the silver medal in the 800 m freestyle at the 1970 european aquatics championships. in june 1971 she set a european record of 18 minutes and 3 seconds in the 1500 m freestyle. between 1969 and 1971 she won two national titles and set 14 national records in the 400 m, 800 m and 1500 m freestyle events.