The U.S. is a party to at least 19 significant multilateral human rights treaties.
Three of them have been reviewed in posts regarding their complex and lengthy U.S. ratification process: the Convention Against Torture, the Genocide Convention and the International Covenant on Civil and Political Rights.
Here is a list of the other 16 such treaties (with the dates they generally entered into force and the dates they were ratified by the U.S. or entered into force for the U.S.):
- Slavery Convention (3/9/1927 & 3/21/1929);
- Protocol Amending the Slavery Convention (12/7/1953 & 3/7/1956);
- Supplementary Convention on the Abolition of Slavery, the Slave Trade and Institutions and Practices Similar to Slavery (4/30/1957 & 12/6/1967);
- Abolition of Forced Labour [sic] Convention (1/17/1959 & 9/25/1992);
- Convention Concerning the Prohibition and Immediate Action for the Elimination of the Worst Forms of Child Labour [sic] (11/17/2000 & 11/17/2000);
- United Nations Charter (10/24/1945 & 10/24/1945); 
- First Geneva Convention for the Amelioration of Condition of Wounded and Sick in Armed Forces in the Field (10/21/1950 & 2/2/1956);
- Second Geneva Convention for the Amelioration of Condition of Wounded and Sick and Shipwrecked in Armed Forces at Sea (10/21/1950 & 2/2/1956);
- Third Geneva Convention for Treatment of Prisoners of War (10/21/1950 & 2/2/1956);
- Fourth Geneva Convention for the Protection of Civilians in Time of War (10/21/1950 & 2/2/1956);
- Protocol Relating to the Status of Refugees (10/4/1967 & 11/1/1968);
- Convention on the Political Rights of Women (7/7/1954 & 7/7/1976);
- International Convention on the Elimination of All Forms of Racial Discrimination (1/4/1969 & 11/20/1994);
- Optional Protocol to the Convention on the Rights of the Child (Involvement of Children in Armed Conflicts) (2/12/2002 & 12/23/2002);
- Optional Protocol to the Convention on the Rights of the Child (Sale of Children, Child Prostitution and Child Pornography) (1/18/2002 & 12/23/2002); and
- Charter of the Organization of American States (12/13/1951 & 12/13/1951).
Merely reviewing the list of these treaties shows the variety of their subjects and the U.S. commitment to international human rights.
 See David Weissbrodt, Fionnuala Ni Aolain, Joan Fitzpatrick, Frank Newman, International Human Rights: Law, Policy, and Process at 136-38 (4th ed. LexisNexis 2009) [Weissbrodt Book].
 The U.N. Charter’s Preamble states that the “Peoples of the United Nations [are determined] to reaffirm faith in fundamental human rights, in the dignity and worth of the human person, in the equal rights of men and women and of nations large and small.” Its Article 55 requires the U.N. to promote, among other things, “universal respect for . . . human rights . . . without discrimination. . . .” Its Article 68 called for the establishment of a Commission on Human Rights. It should also be noted that in 1944 the U.S. prepared the initial plan for what became the U.N., and it included an international bill of rights. (Weissbrodt Book at 11-13.)
 The U.S. ratification of the Protocol Relating to the Status of Refugees implicitly ratified the Convention Relating to the Status of Refugees that generally entered into force on April 22, 1954. The substance of the two treaties was discussed in an earlier post.
 This Convention’s Article I states,”Women shall be entitled to vote in all elections on equal terms with men,without any discrimination.”
 The Charter of the OAS proclaimed “the fundamental rights of the individual without distinction as to race, nationality, creed, or sex” (Art. 3(1) and the responsibility of each state in its development to “respect the rights of the individual and the principles of universal morality” (Art. 17). The Charter also established the Inter-American Commission on Human Rights “to promote the observance and protection of human rights” and to prepare an “Inter-American convention on human rights” (Art. 106).
 It would be interesting to review the history of the U.S. ratification of these treaties, especially those with long periods before the U.S. became a party. I would be interested in comments by anyone who has done so or by anyone who finds errors in this summary.