Abstract: The sport of baseball has played an integral role in constructing a national identity in the American settler state. This essay analyses baseball’s popularization as America’s national pastime and its interconnections with the formation of a settler colonial identity that seeks to erase Indigenous presence on Turtle Island. It does so by tracing the roots of baseball’s origin stories and their relationship to the creation of an American national identity. By examining the processes of colonialism, displacement, genocide, and xenophobia that characterized the game’s early history in North America and delving into baseball’s role in governing the boundaries of insiders and outsiders in the national imagination, this essay provokes questions with regard to the possibility of re-imagining the game of baseball in a decolonial context.