Doppler can refer to: Doppler effect and its applications Doppler broadening Doppler echocardiography Doppler effect Doppler fetal monitor Doppler radar Doppler sonography Pulse-Doppler radar Persons Christian Doppler, who discovered the Doppler effect Franz Doppler, composer Other Doppler, the mascot of the WNBA's Seattle Storm. Dr. Doppler, the villain from Mega Man X3.… (More on Doppler)