Quick answer
Gage is a boy name.
Meaning and history
From an English surname of Old French origin meaning either "measure", originally denoting one who was an assayer, or "pledge", referring to a moneylender. It was popularized as a given name by a character from the book Pet Sematary (1983) and the subsequent movie adaptation (1989).
Notes and context
Wikidata classes: male given name.