2003

All real-world events relating to the universe that occurred in 2003.

January

 * January 6 – Billy Van died.
 * January 27 – Family Guy: Season Two (2) was released.

April

 * April 15 – Family Guy: Volume One (1) was released.
 * April 20 – Adult Swim began airing episodes of.

July

 * July 21 – Family Guy: Season Three (2) was released.

August

 * August 18 – Max Charles was born.

September

 * September 8 – Nicolas Cantu was born.
 * September 9 – Family Guy: Volume Two (1), containing the unaired episode, was released.
 * The third season of ended.

October

 * October 3 – Florence Stanley died.
 * October 20 – Family Guy: Season One (4) was released.

November

 * November 9 – aired on Adult Swim for the first time.