Gabe Logan Newell (b. November 3, 1962), sometimes known by the nickname Gaben, is the co-founder and current managing director of the video game development company known as Valve Corporation, which is known for the Steam gaming platform, as well as several video game series and titles including Half Life, Portal, Left 4 Dead, Day of Defeat, and Team Fortress 2.

The nickname of "Gaben" originates from his company email address "", which was first spoken by him in a commentary track included in Team Fortress 2.