Maxwell \max-well, maxwe-ll\ as a boy's name is pronounced MAKS-wel. It is of Old English origin, and the meaning of Maxwell is "Mack's stream". Place name. Mack was probably based on the name Magnus (Latin) "great". See also Mac. Editor Maxwell Perskins; playwright Maxwell Anderson.
Maxwell has 1 variant form: Maxwelle.
For more information, see also the related name Max.