The Citico darter (Etheostoma sitikuense) is a threatened species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is native to Tennessee. This species was formerly subsumed within Etheostoma percnurum (duskytail darter). The E. percnurum group now consists of four distinct species: E. percnurum, E. marmorpinnum (marbled darter), E. lemniscatum (tuxedo darter), and E. sitikuense.

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