Timmer
Timmer is the family name of:
- Albert Timmer (* 1985), Dutch racing cyclist
- Franz Dafert von Sensel-Timmer (1863–1933), Austrian agricultural expert and food chemist
- Hendrik Timmer (1904–1998), Dutch tennis player
- Henk Timmer (* 1971), Dutch football goalkeeper
- Jan Timmer (* 1933), Dutch manager
- Jan Martin Timmer , German ancient historian
- Jens Timmer (* 1964), German physicist
- Marianne Timmer (* 1974), Dutch speed skater
- Nettie Witziers-Timmer (1923–2005), Dutch athlete
- Peter Timmer (* 1941), American agricultural economist
- Reed Timmer (meteorologist) (* 1980), American meteorologist
- Reed Timmer (basketball player) (born 1995), American basketball player
- Theo Timmer (* 1949), Dutch motorcycle racer
