Vaughn Seavey Blanchard (July 11, 1889 – November 26, 1969) was an American track and field athlete who competed in the 1912 Summer Olympics.
He was born in Franklin, New Hampshire and died in Sarasota County, Florida.
In 1912 he was eliminated in the semi-finals of the 110 metre hurdles competition.
Blanchard also competed in the exhibition baseball tournament at the 1912 Olympics.