| Olympic medal record | ||
|---|---|---|
| Women's swimming | ||
| Competitor for the Netherlands | ||
| Gold | 1936 Berlin | 4×100 m freestyle relay |
Catharina "Tini" Wilhelmina Wagner (December 17, 1919 – June 2, 2004) was a freestyle swimmer from the Netherlands, who represented her native country at the 1936 Summer Olympics in Berlin, Germany.
She was born in Amsterdam, Noord-Holland.
In 1936 she won the gold medal in the 4×100m freestyle relay, alongside Willy den Ouden, Rie Mastenbroek and Jopie Selbach. In the 100 m freestyle competition she finished fifth and in the 400 m freestyle event she finished seventh.