The 1909 World Allround Speed Skating Championships took place at 27 and 28 February 1909 at the ice rink Gamle Frogner in Kristiania, Norway.
Oscar Mathisen was defending champion and succeeded in prolonging his title.
He had the lowest number of points awarded, and no one won three distances. This was the first time that a World champion was declared without winning at least three distances.
The ranking was made by award ranking points. The points were awarded to the skaters who had skated all the distances. The final ranking was then decided by ordering the skaters by lowest point totals.
1 point for 1st place
2 point for 2nd place
3 point for 3rd place
and so on
One could win the World Championships also by winning at least three of the four distances, so the ranking could be affected by this.