Henry Edmund Symes-Thompson (22 June 1873 – 18 January 1952) was an English first-class cricketer and physician.

The son of Edmund Symes-Thompson, he was born at Marylebone in June 1873. He was educated at Winchester College,^[1] before going up to Christ's College, Cambridge.^[2] While studying at Cambridge University, he played first-class cricket for Cambridge University Cricket Club on four occasions in 1894 and 1895,^[3] though did not gain a blue.^[4] Besides playing first-class cricket for Cambridge University, Symes-Thompson also played for the Marylebone Cricket Club on four occasions between 1896 and 1906.^[3] He scored a total of 174 runs in eight first-class appearances, averaging 11.60 with a highest score of 31.^[5]

After gaining his medical degree from Cambridge, Symes-Thompson trained at St George's Hospital in London.^[1] He was a house surgeon and physician at Westminster Hospital and later a physician at the Royal Northern Hospital and the Royal Brompton Hospital. His final medical post was as a physician at St George's Hospital.^[2] His son, Richard, followed in his fathers footsteps and also became a physician. He was killed during the last major bombing raid on London in May 1941.^[6] Symes-Thompson died at Oxford in January 1952.^[4] His brother, Francis, also played first-class cricket, as did his brother-in-law Arthur Page.