CGT
CGT is an abbreviation for:
- Capital Gain Tax , a tax on capital gains
- Chemical graph theory , deals with the formalization and application of graph theoretical principles in the field of chemistry, especially chemoinformatics
- Compagnie Générale Transatlantique , former French shipping company
- Compensated Gross Ton , measure of the comparability of ship production
- Continuous Green T-Intersection , a 3-armed unconventional transportation hub
CGT is an abbreviation for the following unions :
- Confederação Geral do Trabalho , Portuguese anarcho-syndicalist trade union
- Confederación General del Trabajo , Spanish anarcho-syndicalist union
- Confederación General del Trabajo de la República Argentina , Argentine trade union federation
- Confédération générale du travail , French trade union federation, which used to be close to the communist party