List of Famous people born on October 3rd

António van Grichen is a tennis coach, best known for being the former coach of former WTA World No. 1 Victoria Azarenka. He has also coached Vera Zvonareva, Ana Ivanovic, and Jarmila Gajdošová, and as of August 2014, is the current coach of Marcos Baghdatis.

James Alfred Joyce III is an American former professional baseball umpire who worked in the American League (AL) from 1987 to 1999 and throughout Major League Baseball (MLB) from 2000 to 2016. He wore uniform number 6 while in the AL and number 66 for MLB. His loud and enthusiastic strike call drew comparisons to that of retired umpire Bruce Froemming. Joyce is perhaps best known for his incorrect call in Armando Galarraga's near-perfect game in June 2010.

Ernesto Velázquez Ruiz-Mateos is a Spanish badminton player. He won the bronze medal at the 2007 European Junior Championships in the boys' singles event. He emerged as the mixed doubles champion at the National Championships in 2011–2013.