"Variant of Truman"
The name Trueman is commonly a male name from the "English" origin.
Trueman is an English surname used as a given name, a spelling variant of Truman. The surname is explained as a nickname from Middle English trewe, meaning faithful or loyal, and man in the sense of servant or man, applied to a trustworthy servant. It is recorded in United States birth records from 1907 onward.
Truman means "Faithful Man".
The pronunciation of Trueman is TROO-mun.