The second Mathematical Congress of the Americas (MCA) will take place on July 24-28, 2017, at Centre Mont-Royal and McGill University, Montreal, Canada. Based on the very successful experience of the first Congress, wide participation of mathematicians and students from North America, Central America, South America, and the Caribbean is expected. The goals of the Mathematical Congress of the Americas are to highlight the excellence of mathematical achievements of the Americas in the international arena and to foster collaboration between the continents' mathematical communities.