RUSSELL
(which just happens to be my last name!)
English, Scottish, and Irish: from Rousel, a common Anglo-Norman French nickname for someone with red hair, a diminutive of Rouse with the hypocoristic suffix -el.
Americanized spelling of German RĂ¼ssel, from a pet form of any of the various personal names formed with the Old High German element hrod ‘renown’.