The Humane League (THL) is an international nonprofit organization that works to end the abuse of animals raised for food through corporate, media and community outreach.

THL promotes plant-based diets, conducts research on the effectiveness of different interventions, and works to obtain animal welfare commitments from companies.

[1] THL had been involved in over 100 campaigns to convince global companies to pledge using only non-battery cage eggs after a certain date,[6] including Sodexo,[7] Mariott International,[8] Costco, Grupo Bimbo, Starbucks, Compass Group, and Dunkin' Donuts.

[15] THL created in 2016 the Open Wing Alliance, a global coalition of more than 100 animal welfare organizations aiming to end the use of cages in egg production.

[15] THL founded in 2013 a research unit called "The Humane League Labs" that evaluates on the effectiveness of different animal advocacy tactics.

[24] Partly as a result of the Animal Charity Evaluators recommendation, THL has been viewed positively in the effective altruism movement.