Wei Koh (born 11 November 1969) is a Singaporean publisher, journalist, and creative director, best known as the founder of Revolution and The Rake — two of the most influential independent publications in watch culture and classic men's style respectively.

Koh is the son of Singapore's Ambassador-at-Large Tommy Koh, and was born and raised in Manhattan, where his father represented Singapore at the United Nations. He attended Vassar College before completing his national service in Singapore and, in a characteristically unconventional move, relocating to Montana to work as a ranch hand on one of the largest commercial cattle operations in the state. He has described this period, alongside his early exposure to tailoring and mechanical watches, as foundational to his later editorial voice.

In 2005, Koh founded Revolution in Singapore, a print magazine dedicated to mechanical watchmaking that quickly distinguished itself through long-form journalism, deep technical knowledge, and an aesthetic sensibility that positioned horology alongside art, cinema, and music. Revolution grew into one of the most widely read watch publications in the world, published across multiple international editions. In 2008, at the height of the financial crisis, Koh launched The Rake — conceived as a counterpoint to the trend-driven menswear press, and dedicated instead to timeless elegance, artisanal craft, and the idea that men grow into their best selves rather than out of them. Both titles have since expanded into e-commerce.

Koh is widely regarded as one of the most knowledgeable voices in horology media. He is fluent in both English and French, and is known for conducting interviews with independent watchmakers in their native language — a practice he considers an act of respect toward the craft and its practitioners. In 2025, he created and hosted Man of the Hour, an eight-part documentary series produced for Discovery that explored the lives and motivations of the world's leading independent watchmakers, drawing explicit inspiration from Anthony Bourdain's No Reservations in its focus on human stories over product coverage.