Transmeta Corporation ( ) is a US-based corporation that produces very long instruction word code morphing (microcoded) microprocessors, with a focus on reducing power consumption in electronic devices. It was founded in 1995 by Bob Cmelik, Dave Ditzel , Colin Hunter, Ed Kelly, Doug Laird, Malcolm Wing, and Greg Zyner.

So far, it has produced two x86-compatible CPU architectures: Crusoe and Efficeon. These CPUs have appeared in ultra-portable laptops, blade servers, tablet PCs, a personal cluster computer, and a silent desktop, where low power consumption and heat dissipation are of primary importance.

Revenue for the third quarter of 2007 was $44,000, which included $43,000 of services revenue and $1,000 of license revenue for royalty payments.