From a WHC standpoint yes.
in REALITY, if you count his ECW title reign he's a 6 time world champ (1x ECW, 2x WCW, 2x WWF/E, 1x WHC). If you don't, then he's a 5x, 5x, 5x, 5x, 5x world champ (had to get that in there

).
Given the E's current word use in regards to belts, they'd refer to him as WHC. However, back when WCW was around up until the Title unification match that Jericho won, they would have referred to him as the WCW champion.