FIS Nordic World Ski Championships 1978

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.

FIS Nordic World Ski Championships 1978

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.