The name Jehu is a Hebrew baby name. In Hebrew the meaning of the name Jehu is: Jehovah is He. The biblical military commander of Israel (later king) who was noted for pell-mell style of chariot driving.
Strong-willed warrior and protector. It's a shorter form of the Irish name Uilliam, which originated from the Frankish Willahelm, meaning "helmet of will." It's also a shortened version of "William." Well-known Liams: actors Liam Neeson and Liam Hemsworth.