CSQ

CSQ may refer to:

• Centrale des syndicats du Québec, a Canadian trade union
• Conseil de la Souveraineté du Québec, a nonpartisan association for independence of Quebec, now renamed to Organisations unies pour l'indépendance (OUI).
• Conservatory String Quartet, a Canadian string quartet
• The airport code for Creston Municipal Airport
• The ISO 639-3 code for Croatian Sign Language