List of Sesame Street Muppets

The Muppets are a group of puppet characters created by Jim Henson, many for the purpose of appearing on the children's television program Sesame Street. Henson's involvement in Sesame Street began when he and Joan Ganz Cooney, one of the creators of the show, met in the summer of 1968, at one of the show's five three-day curriculum planning seminars in Boston. Author Christopher Finch reported that director Jon Stone, who had worked with Henson previously, felt that if they could not bring him on board, they should "make do without puppets".

Henson was initially reluctant, but agreed to join Sesame Street in support of its social goals. He also agreed to waive his performance fee for full ownership of the Sesame Street Muppets and to split any revenue they generated with the Children's Television Workshop (renamed to the Sesame Workshop in 2000), the series' non-profit producer. The Muppets were a crucial part of the show's popularity and it brought Henson national attention. The Muppet segments of the show were popular since its premiere, and more Muppets were added during the first few seasons. The Muppets were effective teaching tools because children easily recognized them, they were stereotypical and predictable, and they appealed to adults and older siblings.