The Trade Union International of Building, Wood, Building Materials and Allied Industries, also known as the Trade Union International of Construction, Wood, Building Materials and Allied Industries, more commonly known by its French acronym UITBB (Union internationale des syndicats des travailleurs du bâtiment, du bois et des matériaux de construction) is a trade union international affiliated with the World Federation of Trade Unions.

The UITBB was founded at a conference in Milan in 14–16 July 1949.

[11] In 1978 the UITBB claimed 15 million members in 52 affiliated unions in 42 countries.

[11] Member organizations as of 1978 included:[15] The union published Information Bulletin quarterly in English, French, Spanish, Russian, German, Swedish and Finnish.

[16] According to one source it also published a "brief information circulars" five or six times a year.