COBUILD, an acronym for Collins Birmingham University International Language Database, is a British research facility set up at the University of Birmingham in 1980 and funded by Collins publishers.

The facility is lead by John Sinclair. The most important achievement of the COBUILD project has been the creation and analyses of a corpus of contemporary, mainly British English text, some recorded from speech and producing the monolingual learner's dictionary Collins COBUILD English Language Dictionary (1987), based on the study of the COBUILD corpus.

See also: Corpus linguistics