Tiridates IV (), is an hypothetical monarch of the Parthian Empire whose entire existence is debated.
He was certainly part of the Arsacid dynasty but of uncertain lineage. The existence of Tiridates IV is not clear. Sellwood bases the existence of this king on a second row of inscriptions on a coin of Artabanus IV, which appears to include the name Tiridates, but this reading of the text is dubious and contested.