Bäumer is a German surname. Notable people with the surname include:
Angelica Bäumer (1932–2025), Austrian art critic and art historian Bettina Bäumer (born 1940), Austrian-born Indian scholar of religion Gertrud Bäumer (1873–1954), German lawyer and politician Jens Bäumer (born 1978), German footballer Ludwig Bäumer (1888–1928), German writer and Communist activist Marie Bäumer (born 1969), German actress Paul Bäumer (1896–1927), German pilot
See also Baumer Bäumler