''Eomastix'' is a genus of midges in the family Cecidomyiidae. ''Eomastix incerta'' is the only described species in this genus and is known from Norway and Sweden. The genus was established by Mathias Jaschhof in 2009.

References

Cecidomyiidae genera Insects described in 2009 Taxa named by Mathias Jaschhof Diptera of Europe Monotypic Diptera genera {{Sciaroidea-stub Diptera of Scandinavia