Harry Dickson Gell[a] SM FCPA (17 April 1845 – 17 February 1929) was an accountant in South Australia.
Charles Gell, who had some experience at the firm of Morewood & Rogers, opened a hardware store in Hindley Street specializing in galvanized tin ironware.
By 1870 he was in Adelaide working as a clerk and debt collector for Kingsborough & Chapman; in 1874 secretary to the City Permanent Building and Investment Society.
From 1878 he was a public accountant, land broker, and estate agent with both home and offices in Shannon Street, Glenelg.
They had a home "Tainan" in Glenelg His brother Charles Gell was connected with shipping and commercial business at Robe and Kingston for many years.