"Variant of Calloway"
The name Callaway is commonly a unisex name from the "English" origin.
Callaway is an English family name, also recorded in the spelling Calloway. Its use as a given name in the United States is recent: it first appears in birth records in 1994, following the established American pattern of turning surnames into first names. The surname is a hereditary English one, so the given name rests on a family name rather than on an older personal-name root with a recorded meaning.
Calloway means "Variant of Callaway".
The pronunciation of Callaway is KAL-uh-way.