Thomas Gibson Sloane (20 April 1858 – 20 October 1932) was an Australian sheep grazier and entomologist, considered to be one of the pioneers in Australia's entomology field.

[6] "An enthusiastic Darwinian",[6] Sloane wed Eliza Scholastica Woolfrey on 28 October 1891, at the Church of England, Dubbo.

[6] Fellow entomologist Herbert James Carter described Sloane as "unselfish" and "stoic by nature".

[6] He was reportedly very fit for his age and was free from any illness until a while before his death, when he experienced cardiac asthma.

[9] Sloane died on 20 October 1932 at the Bunnerong Hospital[6] in Young, New South Wales.