Ambrose \a-mbro-se, am(b)-rose\ as a boy's name is pronounced AM-brohz. It is of Greek origin, and the meaning of Ambrose is "immortal". English form of the Late Latin name Ambrosius, from Greek Ambrosios. Saint Ambrose (fourth century) was the Bishop of Milan who baptized Saint Augustine; Saint Ambrose (eighth century) was a tutor and friend of Charlemagne. The name is more widely found in Greece than in English-speaking countries. Writer Ambrose Bierce; Civil War General Ambrose E. Burnside.
For more information, see also the related name Merlin.
A baby name that sounds like Ambrose is Umbro.