Installation may refer to:

• Installation (computer programs)
• Installation, work of installation art
• Installation, military base
• Installation, into an office, especially a religious (Installation (Christianity)) or political one

• Hotel Koldingfjord
• Hotel Konigshof
• Hotel Krasnapolsky
• Hotel Kurrajong
• Hotel Königshof
• Hotell
• Hotel La Perla
• Hotel Laredo
• Hotel Laurus al Duomo
• Hotel Lautreamont
• Hotel Lautréamont
• Hotel Leela Venture
• Hotel Leger
• Hotel Leningradskaya
• Hotel Le Soleil
• Hotel Le Toiny
• Hotell Gyllene knorren
• Hotel Lights (album)
• Hotel Lincoln (Marion, Virginia)
• Hotelling's game
• Hotellings law
• Hotelling's T-square distribution
• Hotel load
• Hotel Lobby
• Hotel Lodi