Joseph de La Roche Daillon (died 1656, Paris) was a French Catholic missionary to the Huron Indians and a Franciscan Récollet priest.
La Roche was probably the first European to see Niagara Falls (or at least the second; Étienne Brûlé may have also seen them during his exploration and pass-through of the territory), although Louis Hennepin was the first to describe it.
[1] The next summer, in 1627, he joined a group of nomadic Indians and traveled along the course of the Genesee River to the area of present-day Cuba Lake.
La Roche was one of the few Europeans to reach what is now Western New York before the Seneca-led invasion of the territory that began approximately ten years after his departure.
La Roche published an account of his voyage to and sojourn among the Neutrals, describing their country and their customs, and mentioning the oil he discovered.
De La Roche Hall, the main science building at St. Bonaventure University, is named for the friar.