Lesbian, gay, bisexual, and transgender (LGBT) rights in the British Crown dependency of Guernsey have improved significantly in the past decades.

Legislation approving the legalisation of same-sex marriage in its other dependency, Sark was given royal assent on 11 March 2020.

Prior to 1983, same-sex sexual activity was illegal; after decriminalisation, the age of consent was set at 21 (in line with the UK at that time).

[10] Guernsey has recognised civil partnerships performed in the United Kingdom and other relationships treated as such by UK law for succession purposes in inheritance and other matters respecting interests in property since 2 April 2012.

[23] In January 2022, the Methodist church of Sark allow for the recognition and practice of same-sex marriage effective immediately with a motion passed at an annual conference.

[citation needed] Anti-discrimination protections that cover sexual orientation and gender identity have existed in child welfare proceedings in Guernsey and Alderney since 2008[27] and in Sark since 2016.

[28] In September 2022, the Guernsey lawmaking body passed an extensive anti-discrimination bill into law voted unanimously (33-0) - to explicitly include "sexual orientation".

[41] In June 2021, it is proposed that the Channel Islands will be implementing the "UK-model on risk based assessments" of blood donation.

It was established in February 2014 with the aim to "include, inform and support the local LGBTQ community", as well as to reform discriminatory laws in the Bailiwick.