Zbych Trofimiuk (born 7 April 1979) is a Czech-Australian language teacher, academic, and actor. He is known for his award-winning performance as Mike Masters in the children's television adventure series Sky Trackers, and as the lead character Paul Reynolds in the children's science fiction series Spellbinder.

Born in Prague in the Czech Republic in 1979, to Prague-born sculptor Zoja Trofimiuk and Jurek Trofimiuk, the languages of his early years were Czech, Polish, and German. At four years old, he emigrated with his parents to Melbourne, Australia, where he began to learn English.

In 2004, he graduated from Melbourne's Victoria University with a B.A. in Performance Studies.

Trofimiuk is known for his work as a child actor in Australian television productions.

In 1990, he appeared in ABC's Choices, a short series of mini-dramas about peer pressure and the choices individual children have to make.

In 1994, he appeared in an episode of Network 10's short-lived continuation of the popular Australian soap opera, A Country Practice.

In 1995, Trofimiuk starred in leading roles in two drama series for children: first in the educational adventure series Sky Trackers, playing Mike Masters, for which he won the Australian Film Institute's Young Actor Award; and second as the protagonist, Paul Reynolds, in the science fiction series Spellbinder. Both Sky Trackers and Spellbinder won the Australian Film Institute's Award for Best Children's Television Drama (in 1994 and 1996 respectively). Also in 1995, Trofimiuk guested in an episode of the second series of Snowy River - The McGregor Saga.

In 2005, Trofimiuk performed in the play "Bunny", written and directed by Benjamin Cittadini, at the La Mama Theatre in Melbourne, Australia.