Anton Friedrich Robert Behrend (17 December 1856 – 15 September 1926) was a German analytical organic chemist who made pioneering studies of stereochemistry and isomerism.

Behrend was born in Harburg to Karl, a trader and his wife Louise Elisabeth Margarethe Carol née Himbeck.

He joined the infantry regiment in 1876 and studied law for some time and then shifted to physics under Emil Gabriel Warburg.

In 1877 and 1878, he tried to study chemistry at Leipzig under Herman Kolbe but was not accepted as he knew nothing.

He then worked under Gustav Heinrich Wiedemann and received a doctorate in organic chemistry in 1881.