FIS Nordic World Ski Championships 1978

1978 FIS Nordic World Ski Championships
Host cityLahti
Country Finland
Events11
OpeningFebruary 18, 1978 (1978-02-18)
ClosingFebruary 26, 1978 (1978-02-26)
Main venueSelpausselkä
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Official poster for the FIS Nordic World Ski Championships 1978. (in Finnish)

The FIS Nordic World Ski Championships 1978 took place February 18–26, 1978 in Lahti, Finland. This was Lahti's record fourth time hosting the event after previously doing so in 1926, 1938, and 1958. The women's 20 km event was added.