Terence Steven Semel is an American corporate executive who was the chairman and CEO of Yahoo! Incorporated from 2001 to 2007. Previously, he spent 24 years at Warner Bros., where he served as chairman and co-chief executive officer.

Yahoo! is an American web services provider. It is headquartered in Sunnyvale, California, and operated by the namesake company Yahoo! Inc., which is 90% owned by investment funds managed by Apollo Global Management and 10% by Verizon Communications.