Willner is a surname, and may refer to:

• Alfred M. Willner (1859–1929), Austrian composer and librettist
• Arthur Willner (1881–1959), Czech composer
• Hal Willner (b. 1957), American film and television music producer
• Mats Willner (b. 1968), Swedish journalist
• Robert Willner (b. unknown, d. 1995), American physician from Florida who denied AIDS is caused by HIV

• Kensett, Iowa
• Ken Shamrock
• Kenshi
• Kenshin
• Kenshin Dragon Quest: Yomigaerishi Densetsu no Ken
• Kenshin Gumi
• Kenshin Uesugi
• Ken Shirley
• Ken Shuttleworth (architect)
• Kenshō
• Kensico Cemetery
• Ken Silverman
• Ken Silverstein
• Kensington
• Kensington and Chelsea
• Kensington and Chelsea (disambiguation)
• Kensington and Chelsea (UK Parliament constituency)
• Kensington and Eastern Railroad
• Kensington, Brooklyn
• Kensington, CA
• Kensington, Calgary
• Kensington, California
• Kensington Computer Products Group
• Kensington, Connecticut
• Kensington (disambiguation)