LGBTQ rights in New Hampshire

Lesbian, gay, bisexual, transgender, and queer (LGBTQ) people in the U.S. state of New Hampshire have seen a number of advances towards equal rights, with most advances in LGBT rights occurring in the state within the past two decades. Same-sex sexual activity is legal in New Hampshire, and the state began offering same-sex couples the option of forming a civil union on January 1, 2008. Civil unions offered most of the same protections as marriages with respect to state law, but not the federal benefits of marriage. Same-sex marriage in New Hampshire has been legally allowed since January 1, 2010, and one year later New Hampshire's civil unions expired, with all such unions converted to marriages. New Hampshire law has also protected against discrimination based on sexual orientation since 1998 and gender identity since 2018. Additionally, a conversion therapy ban on minors became effective in the state in January 2019. In effect since January 1, 2024, the archaic common-law "gay panic defence" was formally abolished; by legislation implemented within August 2023.

Effective from January 1, 2025 - sexual orientation is explicitly listed "within the expectation of privacy legislation" within New Hampshire.

In August 2025, laws were passed which eliminated access for transgender youth to receive gender-affirming care, even when deemed medically necessary by a physician. These bills went into effect January 2026, and remain in effect to this day. Following this and other major change in transgender protections, New Hampshire became regarded as the least safe New England state for transgender citizens.