The International ProStar is a line of Class 8 trucks that were manufactured by Navistar International from 2006 to 2017. Marking the introduction of the “Star” branding nomenclature to International, the conventional-cab ProStar replaced the 9400i (and shorter 9200i). Competing against the Freightliner Cascadia and the Kenworth T2000/Peterbilt 387, the ProStar was an aerodynamically-enhanced conventional.

Offered in both day-cab and sleeper-cab configurations, the ProStar was configured primarily for long-distance highway use.