Katharine Ross is a children's book author who wrote three Sesame Street early reading books, all published in 1991: Grover, Grover, Come On Over, Twinkle, Twinkle, Little Bug, and Bert's Little Bedtime Story.

Ross began writing in the 1980s, primarily for Random House. She authored over a dozen books, including The Baby Animals' Party, When You Were a Baby, The Teeny Tiny Farm, an adaptation of Teenage Mutant Ninja Turtles, and The Story of the Pilgrims.