The Modula programming language is a descendent of Pascal programming language, developed by the same Pascal designer Niklaus Wirth in Switzerland in the late 1970s. The main innovation of Modula over Pascal is a module system, used for grouping sets of related declarations into program units, so the name Modula.

Modula was never released and its development was discontinued after its publication; Wirth concentrated his efforts on Modula's successor: Modula-2.