- LEGO Star Wars celebrated its 10th Anniversary with the release of it's 10th Anniversary Line.
- LEGO Indiana Jones 2: The Adventure Continues was released.
- LEGO Universe was originally due to be released this year, but it was delayed and was instead released in 2010.
- LEGO Rock Band was released.
- The LEGO Company changes its slogan from Play On to It's A New Toy Every Day.
- The first Farm related System sets were released under City.
- LEGO celebrated its 50th anniversary of the stud and tube System brick.
- The Clone Wars continued with the release of its second and third wave in January and August.
- LEGO Star Wars: The Complete Saga was released on PC.
- General Mills released some promotional sets.
- Power Miners was released by promotion of a mini-movie.
- Teaser websites for Atlantis, Ben 10, and Toy Story are created.
- It was the 77th anniversary of LEGO.
Themes introduced and discontinued
- Agents 2.0
- BIONICLE Glatorian
- BIONICLE Glatorian Legends
- City Farm
- Indiana Jones and The Temple of Doom
- LEGO Games
- Power Miners
- Space Police III