Hedwig Lachmann (29 August 1865 – 21 February 1918) was a German author, translator and poet.

She spent her childhood in Stolp and a subsequent seven years in Hürben (Swabia).

She met her future husband, Gustav Landauer, in 1899 at Richard Dehmel's house.

One of their grandchildren, Mike Nichols, grew up to be an American television, stage and film director, writer, and producer.

She died in Krumbach, Swabia, a very early fatality of the 1918 flu pandemic.