Phimenes is an Indomalayan and Australasian genus of potter wasps. The genus was formerly regarded as a synonym of Delta. The genus was separated from Eumenes by the Italian hymenopterist Antonio Giordani Soika when he elevated division IV of Eumenes, which Saussure had given the name Phi to, to full generic status. However, Giordani Soika noted that the name Phi was preoccupied by a subgenus of the New World polistine genus Mischocyttarus and he therefore chose to compound Phi with Eumenes into Phimenes as the name for the new taxon.

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