- Jul 1 Saturn Orbit insertion of Cassini-Huygens begins at 01:12 UTC and ends at 02:48 UTC.
- Jul 2 ASEAN Regional Forum accepts Pakistan as its 24th member.
- Jul 3 Official opening of Bangkok's subway system.
- Jul 4 The cornerstone of the Freedom Tower is laid on the site of the World Trade Center in New York City. (This was largely a symbolic event; actual construction would not start for several weeks)
Tennis Open
Jul 4 111th Wimbledon Women's Tennis: Maria Sharapova beats Serena Williams (6-1 6-4)
Maria Sharapova
Serena Williams
- Jul 4 118th Wimbledon Men's Tennis: Roger Federer beats Andy Roddick (4-6 7-5 7-6 6-4)
- Jul 4 UEFA European Championship: Greece defeat Portugal 1-0 in Lisbon
- Jul 5 First Indonesian presidential election by the people - first round (eventually won by Susilo Bambang Yudhoyono)
- Jul 13 75th All Star Baseball Game: AL wins 9-4 at Minute Maid Park, Houston
- Jul 16 Millennium Park, considered the first and most ambitious architectural project in the early 21st century for Chicago, is opened to the public by Mayor Richard M. Daley.
Event of Interest
Jul 17 Martha Stewart is sentenced to five months in prison plus five months in home confinement for lying to federal investigators
Martha Stewart
Event of Interest
Jul 17 Former South African President Nelson Mandela calls for commitment by the world to take action against Aids
Nelson Mandela
- Jul 18 133rd British Golf Open: Todd Hamilton shoots a 274 at Royal Troon Golf Club
Sports Awards
Jul 18 12th ESPY Awards: Lance Armstrong, Diana Taurasi win
Lance Armstrong
- Jul 21 The United Kingdom government publishes Delivering Security in a Changing World, a paper detailing wide-ranging reform of the country's armed forces
- Jul 22 37th San Diego Comic-Con International opens at San Diego Convention Center
- Jul 25 91st Tour de France: no winner (Lance Armstrong disqualified)
Film Release