Lady Penelope was a British weekly comic book magazine for girls which ran from 1966 to 1969. Produced by Century 21 Publications and published by City Magazines, it was a sister publication to TV Century 21. Lady Penelope was edited by Gillian Allan, wife of comic strip writer Angus Allan. The title character was based on Lady Penelope Creighton-Ward, the secret agent seen in the Gerry & Sylvia Anderson/AP Films television series Thunderbirds. Most of the other strips in the comic were also based on popular television shows of the era.