Costoanachis rudyi

{{Short description|Species of gastropod}}

{{Use dmy dates|date=January 2024}}

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| genus = Costoanachis

| species = rudyi

| authority = Espinosa & Ortea, 2006{{WRMS source|128401|Espinosa & Ortea. 2006. Avicennia, 18 : 1–83|17 April 2010}}

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Costoanachis rudyi is a species of sea snail, a marine gastropod mollusc in the family Columbellidae, the dove snails. Can be found in the Guanahacabibes peninsula of Cuba{{WRMS species|390487|Costoanachis rudyi Espinosa & Ortea, 2006||17 April 2010}}