The Vale of Grwyney is a community in Powys, Wales.

The river Grwyney has two tributaries, called the Grwyne Fechan and the Grywne Fawr, which both rise in the Black Mountains and converge into one river near Llanbedr before meeting the Usk at Glangrwyney.

The community includes the villages of Glangrwyney, Llangenny, and Llanbedr.

In 2011 the population of The Vale of Grwyney was 738 with 9.4% of them able to speak Welsh.

[1] The community is part of the Crickhowell electoral ward and sends a county councillor to sit on Powys County Council.