- Source: Nida Senff
- Renang pada Olimpiade Musim Panas 1936
- Nida Senff
- Senff
- Nida (name)
- Rie Mastenbroek
- United States at the 1936 Summer Olympics
- List of people from Rotterdam
- Swimming at the 1936 Summer Olympics
- World record progression 200 metres backstroke
- Swimming at the 1936 Summer Olympics – Women's 100 metre backstroke
- Stans Scheffer
Dina Willemina Jacoba "Nida" Senff (3 April 1920 – 27 June 1995) was a backstroke swimmer from the Netherlands who won the 100 metres backstroke at the 1936 Summer Olympics in Berlin. She did so after missing a turning point, went back to push the wall, and still won the race. Senff won the Dutch title in the 100 metres backstroke in 1935 and 1937, and set five world records in 100 m, 150 yd and 200 m backstroke in 1936–1937. In 1983, she was inducted to the International Swimming Hall of Fame.
See also
List of members of the International Swimming Hall of Fame