JLTV is an acronym for Joint Light Tactical Vehicle (Joint Light Tactical Vehicle), the name refers to the selection program for successor models and the successor vehicles themselves.
The M1279 JLTV-UTL was produced and delivered to the U.S. Army along with the general-purpose JLTV-GP, heavy artillery carrier JLTV-HGC, close-in weapons carrier JLTV-CCWC, and towed JLTV-T.