Christian Gustav Wilhelm Müller (17 February 1857, Mühlberg near Erfurt – 18 February 1940)[1] was a German zoologist specializing in Ostracoda.

In 1895 he succeeded Carl Eduard Adolph Gerstaecker as director of the zoological museum at Greifswald, a position he maintained until 1923.

[2][3] He was the taxonomic authority of numerous taxa in Ostracoda; a few examples being the subfamily Conchoeciinae[4] and the genera Archiconchoecia, Cytherois and Stenocypria.

[5][6][7] In 1965, the genus Muellerina Bassiouni (family Hemicytheridae) was named in his honor.

[8] He was author of the section on ostracods in the series Das Tierreich (Das Tierreich/ 31 : Crustacea, Ostracoda / bearb.