Ratified conventions by Guyana
- 1968 - 2nd Geneva Convention For the Amelioration of the Condition of Wounded, Sick and Shipwrecked Members of Armed Forces at Sea
- 1968 - 3rd Geneva Convention Relative to the Treatment of Prisoners of War
- 1968 - 4th Geneva Convention relative to the protection of civilian persons in time of war
- 1968 - 1st Geneva Convention for the Amelioration of the Condition of the Wounded and Sick in Armed Forces in the Field
- 1977 - International Convention on the Suppression and Punishment of the Crime of Apartheid
- 1977 - International Covenant on Economic, Social and Cultural Rights
- 1977 - International Covenant on Civil and Political Rights
- 1977 - International Convention of the Elimination of All Forms of Racial Discrimination
- 1980 - Convention on the Elimination of all Forms of Discrimination against Women
- 1988 - Additional Protocol Relating to the Protection of Victims of International Armed Conflicts
- 1988 - Additional Protocol Relating to the Protection of Victims of Non-International Armed Conflicts
- 1988 - Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment
- 1991 - Convention on the Rights of the Child
- 1997 - Convention on the Prohibition of the development, production, stockpilling and use of chemical weapons
- 1999 - Optional Protocol to the International Covenant on Civil and Political Rights
- 2003 - Convention on the Prohibition of the Use, Stockpilling, production and transfer and antipersonnel mines
- 2004 - Statute of the International Criminal Court
- 2010 - Optional Protocol on the Sale of Children, Child Prostitution, and Child Pornography
- 2010 - Optional Protocol on the Involvement of Children in Armed Conflict
- 2014 - Convention on Cluster Munitions