Timothy Guy Balme (born January 18, 1967), also known as Tim Balme, is a New Zealand actor and screenwriter. He is best known for his roles in the long-running soap opera Shortland Street and Mercy Peak, as well as lead roles in the cult films Braindead and Jack Brown Genius. Most recently, he was a writer and actor on the television series The Almighty Johnsons.

Balme is married to actress Katie Wolfe, with whom he has two children: a daughter, Edie (born 2001), and a son, Nikau (born 2005). Balme also has a son, Sam (born 1987), from a previous relationship.

Balme graduated from Toi Whakaari in 1989, and his first major role was in the 1992 film Braindead (also known as Dead Alive). Balme and his wife, along with Simon Bennett and Robin Malcolm, founded the New Zealand Actors Company, which lasted three productions before being disbanded. An actor for nearly twenty years, he recently turned to screenwriting and has written episode scripts for television series such as Diplomatic Immunity and Outrageous Fortune. Balme also wrote the screenplay for the short film Redemption, directed by his wife, which was selected for the short film program of the 2011 Sundance Film Festival.

Balme worked as head of development at South Pacific Pictures for three years before returning to freelancing. He currently writes for shows such as the popular Channel 7 drama 800 Words and is the head writer of the detective series The Brokenwood Mysteries. In 2015, he received the award for Best Television Script at the SWANZ (New Zealand Writers Guild Awards) for episode 2, "Sour Grapes", of The Brokenwood Mysteries.