Georgetown guard Eric Floyd, who averaged nearly 17 points and three assists per game this season, was named yesterday to United Press International's 1981-82 all-America team along with Quintin Dailey of San Francisco, Terry Cummings of De Paul, James Worthy of North Carolina and top vote-getter Ralph Sampson of Virginia.

Floyd is the only senior on the team, chosen in nationwide balloting by 160 sportswriters and broadcasters. He received 59 votes; Sampson was named on 148 ballots.

Sampson, a 7-foot-4 junior center, was named player of the year yesterday by The Sporting News, which made Floyd a second-team all-America pick. Sporting News picks were made in a poll of NBA general managers and scouts.

Hoya freshman Patrick Ewing received honorable mention from UPI, as did Virginia's Othell Wilson.

Like Sampson, Floyd, a 6-3 guard, often was the steadying influence on his team. He shot 49 percent from the floor and was the most valuable player of the Big East tournament, which the Hoyas won to advance to the NCAA tournament.

Sampson was named to the all-America team for the second straight year. Before Sampson, the last area player to be named first-team all-America was Albert King of Maryland in 1980.

Sampson, 1981 player of the year, averaged more than 11 rebounds and nearly 16 points a game; he shot 56 percent from the floor.

Dailey, a 6-3 junior from Baltimore, got 54 votes. Cummings, a 6-9 junior who led De Paul to a 26-1 record, received 112. Worthy, a 6-9 junior who like Floyd is from Gastonia, N.C., got 83.

On the second team are guards John Paxson of Notre Dame and Paul Pressey of Tulsa, center Sam Perkins of North Carolina and forwards Kevin Magee of Cal-Irvine and Dominique Wilkins of Georgia.