KPAR may refer to:
KPAR-LP, a low-power radio station (103.3 FM) licensed to Dickinson, North Dakota, United States KTXS-TV, a television station (channel 12 analog/20 digital) licensed to Sweetwater, Texas, United States, which held the call sign KPAR-TV from 1956 to 1966 KPAR, the diffuse attenuation coefficient (the rate of attenuation of irradiance) for photosynthetically active radiation