Sir Sills John Gibbons (1809-1876) was a London merchant and Lord Mayor of London in 1871.
He was created a baronet (of Sittingbourne) in 1872.
He died bankrupt in Hastings in 1876 and was buried in Hastings cemetery. He had married Ann, the daughter of William Crookes but the baronetcy became extinct on his death.
- "Aldermen of the City of London: Castle Baynard ward". British History Online. Retrieved 24 May 2017.
Sir Thomas Dakin
| Lord Mayor of London
1871 – 1872
Sir Sydney Waterlow, Bt