Grayson \g-ray-son\ as a boy's name is pronounced GRAY-sun. It is of Old English origin, and the meaning of Grayson is "son of the gray-haired man".
Grayson has 4 variant forms: Graydon, Greydon, Graysen and Greyson.
Baby names that sound like Grayson are Garson, Carson, Karson, Garrison, Gerson and Gracian.