Behrens is a surname of Germanic origin and may refer to:
- Alice Behrens, British Girl Guide
- Heidi Behrens-Benedict, American politician
- Herbert Behrens (born c. 1929), American tennis player
- Hildegard Behrens (1937 – 2009), German opera singer
- Howard Behrens (born 1933), American artist
- Howie Behrens, member of rock band Pushmonkey
- Isidor Behrens (1868 – 1951), Swedish sport club founder
- Klaus Behrens (born 1941), German Olympic rower
- Kurt Behrens (1884 – 1928), German Olympic diver
- Leffmann Behrends (c. 1630 – 1714), Hanoverian financier
- Paul Behrens (1893 – 1984), German clockmaker
- Peter Behrens (1868 – 1940), German architect
- Peter Behrens (musician) (born 1947), German musician, actor and clown
- Sam Behrens (born 1950), American actor
- W. W. Behrens, Jr. (1922 – 1966), American naval officer and oceanographer
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