Phidiana militaris is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Aeolidiidae.

[2] This species was described from India.

It has been reported from Oman, New Zealand, Hong Kong, Thailand, Borneo and the Philippines.

[3][4] In 2016 three specimens of this species were observed eating hydroids on a sunken submarine in Haifa Bay off Israel, probably having reached the Mediterranean as a Lessepsian migrant through the Suez Canal from the Red Sea.

[5]