KWIN and KWNN (collectively known as 97.7 & 98.3 K-WIN) are a pair of Rhythmic Top 40s station serving Stockton, California. They are owned by Citadel Broadcasting Corporation.

In Unix computing, KWin is a window manager for the X Window System. It is an integral part of the K Desktop Environment (KDE), although it can be used on its own or with other desktop environments.