- 21st century

2000s

2000

Knights' Kingdom, Life on Mars, and Soccer/Football are introduced.
Dino Island, a sub-line of Lego Adventurers is introduced, then discontinued. RoboRiders are also introduced, then discontinued.
Lego Underground (Rock Raiders) and Lego Throwbots are discontinued.
Lego Studios is introduced.
The British Association of Toy Retailers names the Lego brick "Toy of the Century".

2001

January: Lego Bionicle is launched in Europe
June/July: Lego Bionicle is launched in the United States
LEGO Brand Retail stores are opened in England, Germany, and Russia.
Islanders and Imperial Armada, sub-lines of Lego Pirates, are reintroduced, then rediscontinued.
Lego Life on Mars is introduced, then discontinued.
Lego Alpha Team and Lego Harry Potter are introduced.
Lego Serious Play is unveiled

2002

Company slogan changes from "Just Imagine..." to "Play On"
Lego Wild West is discontinued.
Lego Island Xtreme Stunts, Spider-Man, and Lego Racers are introduced.
Lego Mania Magazine issues are changed to Lego Magazine.

2003

Lego introduces new skin tones for mini-figures based on actual people. This affected the Star Wars, Harry Potter, NBA, Ferrari and Spider-Man lines, but yellow skin tones are retained for all other figures.
Clikits, Lego Designer, Lego Hockey, Lego Basketball, and Lego Gravity Games are introduced.
Orient Expedition, a sub-line of Adventurers is introduced.
Lego Island Xtreme Stunts is discontinued.
Lego Inventor is introduced, then discontinued.
Lego World City is introduced.
September 13: Bionicle: Mask of Light movie is released.
Lego mini figure celebrates its 25th birthday.

2004

Lego replaces several of its long-standing colors including grey, dark grey, brown and violet.
QUATRO brick is introduced for children ages 1-3.
Lego Knights' Kingdom II is introduced.
Orient Expedition, a sub-line of Lego Adventurers is discontinued.
Lego Spider-Man, Lego World City, and Lego Gravity Games are discontinued.
October 6: Bionicle 2: Legends of Metru Nui movie is released.
Lego Group reports record loss for 2003 fiscal year.

2005

Lego System celebrates its 50th anniversary.
Lego Alpha Team is discontinued.
January: Lego City is introduced.
Spring: Lego Dino Attack/Dino 2010 is introduced.
Autumn: Lego Vikings is introduced.
October 11: Bionicle 3: Web of Shadows movie is released.

2006
Lego Exo-Force is introduced.
SpongeBob SquarePants, Avatar: The Last Airbender and Batman building sets are introduced.
Lego Sports is reintroduced.
Remote control trains are introduced.
Lego Mindstorms NXT is released.

2007
Lego Aqua Raiders is introduced.
Lego Mars Mission is introduced.
Lego 9V trains are officially discontinued.

2008

Lego Indiana Jones is introduced
Lego Batman Videogame is introduced
Lego Speed Racer is introduced
Lego Agents is intoduced

2010s

2011

LEGO Group license with Lucasfilm expires.