''Stigmella'' is a genus name that may refer to:
* Stigmella (moth), ''Stigmella'' (moth), a genus of moths in the family Nepticulidae
* Stigmella (fungus), ''Stigmella'' (fungus), a plant pathogenic ascomycete fungi genus of uncertain affiliation (e.g. ''Stigmella platani-racemosae'')
{{Genus disambiguation