Tim Sinclair (born 1972) is an Australian author of young adult fiction and poetry, resident in Sydney. Sinclair was born in the Adelaide Hills, South Australia. Best known for the verse novels Run and Nine Hours North (Penguin Books), he is also the author of the poetry collections Re:reading the dictionary and Vapour Trails, and a collaborator (with Ben Winch) on the spoken word concept album Brothers of the Head. He has performed and taught regularly at schools and festivals.