Yukthi Rekha (യുക്തിരേഖ) is a rationalist periodical published monthly in Malayalam.^[1] It is the official magazine of the organisation, Kerala Yukthivadi Sangham. It was founded in 1984 by Kerala Yukthivadi Sangham, a rationalist organisation.^[1] Pavanan was the founder-editor of the magazine. Kesavan Vellikulangara served on the editorial board of the magazine.^[2]