Similar to 2003年バレーボール・ワールドリーグ

2003 Men's South American Volleyball Championship

2003 Men's NORCECA Volleyball Championship

2003 Beach Volleyball World Championships

2003 FIVB Volleyball Women's World Cup

Deaths in July 2003

2003 AFC Futsal Championship

2003 CONCACAF Gold Cup

2003 FIFA Women's World Cup qualification (CONCACAF–AFC play-off)

2003 Major League Baseball All-Star Game

2003 UEFA European Under-19 Championship

2003 UEFA Women's Under-19 Championship

2003 British Grand Prix

2003 British motorcycle Grand Prix

2003 Cambodian general election

Sudan Airways Flight 139

2003 UCI Track Cycling World Championships

2003 IBF World Championships

2003 World Amateur Boxing Championships

2003 World Youth Championships in Athletics