Robert T.S. Frankford (born August 1, 1939 in Nottingham, England) is a politician in Ontario, Canada. He served as a New Democratic Party member of the Legislative Assembly of Ontario from 1990 to 1995.

Frankford is a medical doctor. He was educated at the University of London in England, and became a family physician before entering political life. He was responsible for inaugurating the first Health Service Organization in Toronto.

He was elected to the Ontario legislature in the 1990 provincial election, defeating Liberal incumbent Ed Fulton by 1,774 votes in the riding of Scarborough East. The NDP won an unexpected majority government in this election. Perhaps somewhat unusually considering his professional background, Frankford was never appointed to cabinet and only served as a parliamentary secretary from 1990 to 1991.

The NDP were defeated in the 1995 provincial election, and Fulton lost his seat to Progressive Conservative candidate Steve Gilchrist by almost 12,000 votes.

He ran for the federal New Democratic Party for the Canadian House of Commons in the 1997 federal election, but finished a distant fourth against Liberal John McKay in Scarborough East. He also attempted to return to the Ontario legislature in the 1999 provincial election, but finished a very distant third against Liberal Gerry Phillips in the riding of Scarborough Southwest. His wife, Helen Breslauer , has also campaigned for the NDP.

He returned to his medical practice after leaving office and became a family physician at the Seaton House men's hostel, which services many poor and homeless in the city. As of 2004, he was chair of the Ontario Medical Association's section of Health Service Organization physicians.