Henry Dolphus Smith (December 23, 1819 – November 22, 1889) was an Ontario political figure.
He was born in Wolford Township, Grenville County, Upper Canada in 1819, the son of Methodist minister William Smith.
Before he was elected to the Ontario legislature, Smith ran unsuccessfully three times for the same seat in the legislative assembly of the Province of Canada.
He defeated Ogle Gowan in the 1867 general election; he was defeated by Henry Merrick in the general election that followed in 1871.
This article about an Ontario Liberal Party MPP is a stub.