Throwim Way Leg is a 1998 book written by Australian scientist Tim Flannery. It documents Flannery's experiences conducting scientific research in the highlands of Papua New Guinea and Indonesian Western New Guinea. The book describes the flora and fauna of the island and the cultures of its various peoples. The title is an anglicised spelling of the New Guinean Pidgin "Tromoi Lek," to go on a journey.^[1]

Flannery recounts his 15 trips to New Guinea beginning in 1981, when he was aged 26. He identifies at least 17 previously undescribed species during this period.^[2]