| Contracting Party | Treaty | Signature | Instrument | In Force | Details |
| Trinidad and Tobago | Berne Convention | | Accession: May 16, 1988 | August 16, 1988 | Details |
| Trinidad and Tobago | Brussels Convention | | Accession: August 1, 1996 | November 1, 1996 | Details |
| Trinidad and Tobago | Budapest Treaty | | Accession: December 10, 1993 | March 10, 1994 | |
| Trinidad and Tobago | Locarno Agreement | | Accession: December 20, 1995 | March 20, 1996 | |
| Trinidad and Tobago | Nairobi Treaty | October 24, 1981 | | | |
| Trinidad and Tobago | Nice Agreement | | Accession: December 20, 1995 | March 20, 1996 | Details |
| Trinidad and Tobago | Paris Convention | | Accession: May 14, 1964 | August 1, 1964 | Details |
| Trinidad and Tobago | Patent Cooperation Treaty | | Accession: December 10, 1993 | March 10, 1994 | |
| Trinidad and Tobago | Phonograms Convention | | Accession: June 27, 1988 | October 1, 1988 | |
| Trinidad and Tobago | Strasbourg Agreement | | Accession: December 20, 1995 | December 20, 1996 | |
| Trinidad and Tobago | Trademark Law Treaty | October 28, 1994 | Ratification: January 16, 1998 | April 16, 1998 | |
| Trinidad and Tobago | UPOV Convention | | Accession: December 30, 1997 | January 30, 1998 | Details |
| Trinidad and Tobago | Vienna Agreement | | Accession: December 20, 1995 | March 20, 1996 | |
| Trinidad and Tobago | WIPO Convention | | Accession: May 16, 1988 | August 16, 1988 | |
| Trinidad and Tobago | WIPO Copyright Treaty | | Accession: August 28, 2008 | November 28, 2008 | |
| Trinidad and Tobago | WIPO Performances and Phonograms Treaty | | Accession: August 28, 2008 | November 28, 2008 | |