A radar apparatus includes a radar transmitter and a radar receiver. The radar receiver includes sampling circuitry, correlation calculation circuitry, a plurality of adder circuitry, a plurality of Doppler frequency analysis circuitry and Doppler frequency correction circuitry. The Doppler frequency correction circuitry, which in operation, (i) determines whether or not a folding in a Doppler frequency included in a reflected wave signal is present according to an amplitude difference or phase difference between two of peak spectra of results of analyses performed by the plurality of Doppler frequency analysis circuitry, and (ii) makes a correction to the Doppler frequency included in a reflected wave signal on the basis of the results of the analyses in a case it is determined that the folding is present.