Huntsman announced the endorsement Thursday night at a town hall meeting. He calls it proof that in New Hampshire, in his words, "there's something happening."
The former Utah governor is counting on a strong finish in Tuesday's primary to stay in the GOP race.
The Boston Globe has subscribers in southern New Hampshire. It endorsed Sen. John McCain over Romney in 2007.
The Globe says Romney and Huntsman are the only GOP candidates who stand out as presidential. But it says Huntsman is bold while Romney is cautious and tries to appease enough constituencies to get elected.