Gormanite is a phosphate mineral with the formula (Fe,Mg)3Al4(PO4)4(OH)6·2H2O.

It was named after the University of Toronto professor Donald Herbert Gorman (1922–2020).

It was first described in 1981 for occurrences in Rapid Creek and Big Fish River in the Dawson Mining District, Yukon Territory, Canada.

At the type localities it occurs as veins in iron phosphate nodules.

[2][4] In the Bisbee, Arizona occurrence, it occurs as large crystals within fractures in a tonalite intrusive.