Casemiro do Amaral (14 September 1892 – 18 October 1939) was a Brazilian footballer of Portuguese descent that played as a goalkeeper.
Although he was born in Lisbon, Casemiro emigrated to Brazil where his career started in 1911, at America, from Rio de Janeiro, before moving to Germânia, from São Paulo in 1912.
Casemiro also played for Mackenzie from 1915 to 1917 and for Corinthians between 1913 and 1914, and from 1918 to 1920.
He was also included in Brazil's Copa América squads in 1916 and 1917.
This biographical article related to a Brazilian association football goalkeeper is a stub.