The poll released Tuesday by the New Hampshire-based college found that former Secretary of State Hillary Clinton led the field with 65 percent of those surveyed saying they would vote for her in 2016.
O'Malley finished last among the field of six with zero percent saying they would vote for the two-term Democratic Maryland governor.
Rounding out the field is Vice President Joseph Biden with 10 percent, Massachusetts Sen. Elizabeth Warren with 5 percent, New York Gov. Andrew Cuomo with 4 percent and Massachusetts Gov. Deval Patrick with 3 percent.
The college surveyed 314 New Hampshire Democratic voters. The poll has a margin of error of 5.5 percent, according to the college.
“Our polling is consistent with other surveys that show former Secretary of State Clinton as far and away the preference for Democratic voters in New Hampshire at this early stage,” Ben Tafoya, director of the college's polling center, said in a released statement. “If she does not run in 2016, the Democratic contest in the first in the nation primary will be wide open."
The New Hampshire College poll is similar to another poll released by Quinnipiac University earlier this month.
In that poll, 65 percent of those surveyed nationally said they would vote for Clinton.
O'Malley, Patrick and Virginia Sen. Mark Warner finished with 1 percent of less of the support in the national poll.
O'Malley, who is completing the last 18 months of his second and final term as governor, is widely expected to run for president in 2016. Last year, O'Malley set up a national political action committee account called the "Oh Say Can You See" PAC.
During a trip to Israel last month, O'Malley said he remains undecided on a presidential run but plans to "dedicate some more thought time—reflection time—to the question of whether or not I would run in 2016," according to the Washington Post.
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