Seth Friedman is a writer and lyricist who, with composer Martin Erskine, co-wrote two songs for The Adventures of Elmo in Grouchland: "Welcome to Grouchland" and "Make It Mine."

Friedman contributed to the off-Broadway musicals Upstairs at O'Neals (1982, words and music) and Personals (1985, book, lyrics, and music, working with Alan Menken and others). He wrote an episode of the sitcom Veronica's Closet and, with Erskine, wrote the song ""Digga Tunnah" for The Lion King 1 1/2.