- Is of English, Irish and Samoan descent.
- Lived in Samoa for a short time as a youngster; represented the Samoan national football team at age 14.
- Moved to England in 1998 to play soccer for Millwall FC; in 2004, he was transferred to Everton.
- Joined the Socceroos, Australia's national team, in 2004.
- In 2006, scored Australia's first ever World Cup goal, in a match against Japan.
- Launched the Foxtel All-Stars Tim Cahill Academy in 2011, a free program that encourages kids to play football and lead active, healthy lifestyles.
- Moved to the U.S. in 2012 to join the New York Red Bulls; was awarded the Gold Boot and MVP in 2013.
- Is a UNICEF ambassador.
- Sean Cahill — Brother
- Chris Cahill — Brother
- Rebekah Greenhill — Wife
- Sienna Cahill — Daughter
- Tim Cahill Sr. — Father
- Sisifo Cahill — Mother
- Ben Roberts — Cousin
- Shae Cahill — Son
- Kyah Cahill — Son