Hugh Alfred Calder (December 25, 1872[1] – August 6, 1964) was a real estate developer and politician in Alberta, Canada.

Calder was born in Bridgewater, Nova Scotia in 1873, and grew up there before moving to Labrador, where he started its first lumber company.

Calder's first bid for political office took place during the February 1912 municipal election, when he ran to fill one of ten aldermanic seats available on Edmonton City Council.

He finished eleventh of eighteen, but the terms of the just-effected merger between Edmonton and Strathcona stipulated that at least three of the aldermen come from the south side of the North Saskatchewan River.

Only two of the top ten (John Tipton and Thomas J. Walsh) were, so Calder was elected to the third spot instead of the tenth place D. B. Campbell.