Kieser is a surname. Notable people with the surname include:

• Dietrich Georg von Kieser (1779–1862), German physician
• Hans-Lukas Kieser, Swiss historian of the late Ottoman Empire and Turkey who has been on University faculties in the United States, Germany, France and Turkey

• The Lamb
• The Lamb (2017 film)
• The lamb and lion
• The lamb and the lion
• The Lamb (Blake)
• The Lambeth Cross for Ecumenism
• The Lambkin
• The Lambrecht-Schadeberg Collection
• The Lame Dog Man
• The Lame Gentleman
• The Lamentation
• The lamentation of cloris
• The Lamentation over the Body of Christ (Bellini)
• The Lamentations of a Sinner
• The Lament for Owen Roe
• The Lamron
• The Lanark and Renfrew Scottish Regiment
• The Lancaster House Treaties (2010)
• The Lancaster PA278 disappearance
• The Lancers (group)
• THE LANCET
• The Lancet. Child & Adolescent Health
• The Lancet Child & Adolescent Health
• The Lancet. Child and Adolescent Health
• The Lancet Child and Adolescent Health