Grosvenor \g-rosve-nor, gr(os)-venor\ as a boy's name is of Old French origin, and the meaning of Grosvenor is "great hunter". Grosvenor is the surname of one of the richest families in Britain. Their stake in London real estate is commemorated in names like Grosvenor Square.

Grosvenor has 1 variant form: Grosveneur.