(The) Lake House may refer to:

• Lake house (real estate), a house located on or near a lake; a cottage or summer house

• Lake House (Antarctica), a lake in Victoria Land, Antarctica

• The Lake House (film), a 2006 film
• The Lake House (Patterson novel), a 2003 novel by James Patterson
• The Lake House (Rhode novel), a 1946 detective novel by John Rhode
• The Lake House, a 2015 novel by Kate Morton
• Lakehouse (2013 EP), album by Lebanese band Postcards (band)
• The Lakehouse (2006 song), song by Rachel Portman, from the 2006 film The Lake House, on the soundtrack album The Lake House: Original Motion Picture Soundtrack
• "The Lake House" (Brooklyn Nine-Nine), an episode of the eighth season of Brooklyn Nine-Nine
• Lake House (DLC), a downloadable content (DLC) for the 2023 video game Alan Wake 2

• The Lake House (Waterford, Maine), a historic tavern
• Lake House, an Elizabethan country house in Wiltshire, England
• Lake House, a building in the Olds-Robb Recreation-Intramural Complex, Eastern Michigan University's recreation center
• Lake House, recreational park at Angelo State University, Texas
• Lakehouse, a residential highrise in Denver, Colorado, USA; see List of tallest buildings in Denver

• Lake House, now known as Associated Newspapers of Ceylon Limited, located in Sri Lanka
• Lakehouse plc, a British energy company, renamed Sureserve in October 2018.

• All pages with titles containing lake house
• All pages with titles containing lakehouse
• Loon Lake House, a hotel at Loon Lake (Franklin County, New York)
• Moon's Lake House, a resort at Saratoga Springs, New York