Ulla Jäfvert

Ulla Birgitta Elisabeth Jäfvert (later Fahlén; born 16 April 1946) is a Swedish swimmer who won a silver medal in the 4 × 100 m freestyle relay at the 1966 European Aquatics Championships. Two years earlier at the 1964 Summer Olympics she finished fifth in the same event.

Jäfvert represented Västerås SS.