Kielland is a Norwegian surname. Notable people with the surname include:

• Alexander Kielland (1849–1906), Norwegian writer
• Axel Christian Zetlitz Kielland (1853–1924), Norwegian civil servant and diplomat
• Christian Bendz Kielland (1858–1934), Norwegian civil servant
• Gabriel Kielland (1871–1960), Norwegian architect, painter and designer
• Gabriel Schanche Kielland (1760–1821), Norwegian businessman and ship owner
• Gustava Kielland (1800–1889), Norwegian author and missionary pioneer
• Jacob Christie Kielland (1897–1972), Norwegian architect
• Jacob Kielland (officer) (1825–1889), Norwegian naval officer and politician
• Jacob Kielland (priest) (1841–1915), Norwegian priest and politician
• Jacob Kielland (businessman) (1788–1863), Norwegian businessperson, consul and politician
• Jens Zetlitz Monrad Kielland (1866–1926), Norwegian architect
• Jens Zetlitz Kielland (1816–1881), Norwegian consul and artist
• Jonas Schanche Kielland (born 1863) (1863–1925), Norwegian jurist and politician
• Jonas Schanche Kielland (1791–1852), Norwegian consul and politician
• Kitty Lange Kielland (1843–1914), Norwegian landscape painter
• Olav Kielland (1901–1985), Norwegian composer and conductor
• Tycho Kielland (1854–1904), Norwegian jurist