Kierkegaard is a Danish surname, literally meaning or and colloquially meaning . Note that the double a is equivalent of å in common nouns and is retained from the pre-1948 orthography in proper nouns only.

Notable people with the surname include: Aage Kirkegaard, Danish field hockey player Christer Kierkegaard (1918–1999), Swedish Navy rear admiral Emil Kirkegaard, founder of OpenPsych

Niels Christian Kierkegaard (1806–1882), Danish painter Peter Kierkegaard (1805–1888), Danish theologian

Søren Kierkegaard (1813–1855), Danish philosopher Sylvia Kierkegaard (1952–2015), Philippine law scholar