- Source: Bernt Zarnowiecki
- Renang pada Olimpiade Musim Panas 1972
- Bernt Zarnowiecki
- Zarnowiecki
- Anita Zarnowiecki
- List of Swedish Swimming Championships champions (men)
- List of Swedish Short Course Swimming Championships champions (men)
- Sweden at the 1972 Summer Olympics
- Vansbrosimningen
- Swimming at the 1972 Summer Olympics – Men's 200 metre freestyle
- Swimming at the 1973 World Aquatics Championships – Men's 200 metre freestyle
- 1973 Maccabiah Games
Bernt Lennart Zarnowiecki (born 26 May 1954) is a Swedish swimmer who won a bronze medal in the 4 × 200 m freestyle relay at the 1974 European Aquatics Championships. He also competed in the same event at the 1972 Summer Olympics, but the Swedish team was eliminated in the preliminaries.
Being Jewish, he competed at the 1973 Maccabiah Games in Israel, and won three gold medals, including in the men's 400 m freestyle and the 1,500 m freestyle.
His twin sister, Anita Zarnowiecki, also competed in freestyle swimming at the 1972 Summer Olympics and the ninth Maccabiah Games.