Uthwerdum is an East Frisian village in Lower Saxony, Germany.

It is an Ortsteil of the municipality of Südbrookmerland, located east of Moordorf.

Later, it was recorded as Uthwehrum (end of the 17th century) and Uthwerdum (1871).

The name is to be interpreted as the Old Frisian dative plural form ut-werum, i.e. "(at the) outermost (distant) weirs".

Other sources believe that the name is to be interpreted as the Old Frisian dative plural form of werf, "elevation" or "dwelling", with the loss of the f (or v), although this sound development is atypical for the area.