Olrog may refer to:
People Claës Christian Olrog (1912-1985), Swedish-Argentinian zoologist Margaret Olrog Stoddart (1865–1934), New Zealand artist Peter Olrog Schjøtt (1833–1926), Norwegian philologist and politician Ulf Peder Olrog (1919–1972), Swedish folklorist, lecturer, composer, songwriter, and radio personality
Species Olrog's chaco mouse Olrog's cinclodes Olrog's four-eyed opossum Olrog's gull