Around New England · law For Subscribers Still Legal To Marry At 13 in New Hampshire By Matt McDonald March 10, 2017 · 10:23 PM EST · Updated June 25, 2025 1:42 PM Advertisement A bill that would have set 18 as the minimum age to marry in New Hampshire failed. Currently, someone younger than 18 needs a waiver from a judge. A bill that would have set 18 as the minimum age to marry in New Hampshire failed. Currently, someone younger than 18 needs a waiver from a judge.… Advertisement