Kristjan is the spelling of the name Christian in Estonian language and Slovenian language. People named Kristjan include: * Kristjan Fajt (born 1982), Slovenian professional road bicycle racer * Kristjan Ilves (born 1996), Estonian Nordic combined skier * Kristjan Järvi (born 1972), Estonian-American conductor * Kristjan Kais (born 1976), Estonian beach volleyball player * Kristjan Kangur (born 1982), Estonian basketball player * Kristjan Kasearu (born 1986), Estonian singer * Kristjan Kitsing (born 1990), Estonian basketball player * Kristjan Makke (born 1981), Estonian basketball player * Kristjan Paapsi (born 1987), Estonian football player * Kristjan Palusalu (1908–1987), Estonian heavyweight wrestler * Kristjan Jaak Peterson (1801–1822), Estonian poet * Kristjan Rahnu (