Richard Bennett Hatfield PC ONB (April 9, 1931 – April 26, 1991) was a Canadian politician who served as the premier of New Brunswick from 1970 to 1987. He was the longest-serving premier in New Brunswick history.

The youngest of five children of Heber Hatfield and Dora Robinson, Richard was brought up with politics in the household. His father, already a well known potato shipper, was Hartland's mayor when he was born. In 1938, at 7 years old, his father brought him to the Conservative Party of Canada leadership convention in Winnipeg where he met his namesake, R. B. Bennett. In 1940 Heber was elected Victoria-Carleton county Conservative Member of Parliament and served until his death due to cancer in 1952. Young Richard spent a lot of time in Ottawa, even getting to know John Diefenbaker and his first wife Edna.

After graduating from high school in 1948 in his home town Hartland, Hatfield attended Acadia University for four years, majoring in chemistry and English, and became a member of the Sigma Chi fraternity. He also got involved in drama, an experience that seemed to have the most lasting impact of any during his years at Acadia. "That was extremely valuable" he said. "It would benefit every politician to have a bit of theatre training... too many politicians get caught up using big words to impress, but don't know how to project feelings." After Acadia, he attended Dalhousie University to become a doctor but after a year he turned to law. He graduated Dalhousie Law School in 1956.

Hatfield left Halifax in 1957 and moved to Truro to take a job with the firm Patterson, Smith, Matthew and Grant so he could do his six months articling period. After successfully completing his articles, he left Truro to join Gordon Churchill who was at the time Minister of Industry in Ottawa. He declined a job offer at the firm and he never practised law again. He stayed in Ottawa for nine months until he called his brother Fred for a job back home. Frederick Heber Hatfield (1922-2004), who was managing the potato shipping and processing operation since Heber died, agreed and Richard became vice-president of sales. He worked with his brother until 1965. When his family sold their potato chip plant to Humpty Dumpty Snack Foods, he decided to be a politician full-time.

In 1961, Hugh John Flemming left his Carleton County seat and ran successfully in the federal seat of Royal. Fred, then president of Carleton County PC Association, offered the nomination to Richard, who accepted. He ran against his brother-in-law Gerald Clark, and won easily with a majority of 1,736 votes. Years later, he recalled that his father's reputation "had helped me to be elected, and now I was on my own."

When the New Brunswick Legislature was not sitting, Hatfield sold potato chips all over the Maritimes. His first few years as an MLA were uneventful, but he spent a lot of time talking to reporters about politics in Fredericton and Montreal.

He became Leader of the Opposition and interim leader of the Progressive Conservatives after the 1967 general election and was elected party leader in 1969 after defeating former leader Charles Van Horne. He led the party to victory in the 1970 provincial election. During Hatfield's long tenure, he became prominent on the national stage by allying with Canadian Prime Minister Pierre Trudeau during the constitutional negotiations that led to the 1982 patriation of the Canadian constitution and the creation of the Canadian Charter of Rights and Freedoms. He also took leadership in helping create equality between the province's Francophone Acadian minority and Anglophone majority.

His attempts at attracting investment to the province and developing the economy were less successful. In the 1970s, the Hatfield government financed the manufacture of the Bricklin SV-1 in hope of creating an auto industry in the province. Although the visionary project produced an advanced sports car, huge cost overruns and poor management led to the company's demise.