Bob Sipchen (born June 13, 1953) is an American journalist, author, educator, and communications professional. He is currently a Senior Editor at the Los Angeles Times and an adjunct professor in the Department of Writing and Rhetoric at Occidental College in Los Angeles. He previously served as Communications Director of the Sierra Club and as Editor-in-Chief of Sierra magazine. He has been part of teams at the Los Angeles Times that have won three Pulitzer Prizes.