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This is a list of LEGO themes, or lines of LEGO sets, according to their official categorization.

This article is an attempt to create a list of all lines of LEGO sets, commonly called "themes," such as "LEGO Town" and "BIONICLE" and the years they were introduced and removed. This does not include years where a certain theme was dropped and brought back the next year.

LEGO System

The LEGO System logo from 1992 onwards.

Unreleased System themes

LEGO TECHNIC (1977–present)

LEGO TECHNIC logo from 2000 onwards.


DUPLO logo from 1997 onwards.



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