Jack William Pithey GOLM ICD CBE (born 30 December 1903, date of death unknown) was a Rhodesian politician who served as the unrecognised state's Acting President between 1 November 1978 and 5 March 1979. He was also the President of the Senate of Rhodesia from 1970 to 1978 having previously been Member of Parliament for the Avondale constituency in north-west Salisbury (now Harare) between 1964 and 1970.