Fourth government of Luis Muñoz Marín

This fourth and last government of Luis Muñoz Marín followed his third reelection. In many ways it was a continuation of the previous government, with one change in positions, the Secretary of Labor, and the same amount of supermajoritarian control of the Senate of Puerto Rico and House of Representatives of Puerto Rico.

Meanwhile the opposition composition shifted, with the entrance of the Partido Acción Cristiana with one senator and one representative, the Puerto Rican Independence Party dropping out of representation thresholds, and the Partido Estadista Republicano solidifying its status as the main opposition party, their presence bolstered by virtue of the effects of.

Party breakdown
Party breakdown of cabinet members, not including the governor:

The cabinet was composed of members of the PPD and two independents or technical positions (or people whose membership in a party was not clearly ascertained from any available media).

Members of the Cabinet
The Puerto Rican Cabinet was led by the Governor alone in this period. The Cabinet was composed of all the Secretaries of the executive departments of the Commonwealth government, which at this time was limited to a small number of offices as delineated initially in the Constitution.

{| class="wikitable" border="1" ! Office ! Name ! colspan="2" | Party ! Term ! colspan="9"|
 * - bgcolor="#ececec"

Governor
! colspan="9"|
 * rowspan="1" | Governor of Puerto Rico Gobernación de Puerto Rico || Luis Muñoz Marín || style="background-color:#FFB6B6" | || Popular Democratic Party|| 24 July 1952 – 2 January 1965
 * rowspan="1" | Governor of Puerto Rico Gobernación de Puerto Rico || Luis Muñoz Marín || style="background-color:#FFB6B6" | || Popular Democratic Party|| 24 July 1952 – 2 January 1965

Council of Secretaries

 * rowspan="1" | Secretary of State Secretaría de Estado || Roberto Sánchez Vilella || style="background-color:#FFB6B6" | || Popular Democratic Party|| 25 July 1952 - 2 January 1965
 * rowspan="1" | Secretary of Agriculture, Commerce, and Public Works Secretaría de Agricultura y Comercio y Obras Públicas || Luis Rivera Santos   || style="background-color:#FFB6B6" | || Popular Democratic Party|| 2 January 1957 - 2 January 1965
 * rowspan="1" | Secretary of Justice Secretaría de Justicia || Hiram R. Cancio Vilella || style="background-color:#FFB6B6" | || Popular Democratic Party || 29 January 1958 - 31 August 1965
 * rowspan="2" |Secretary of the Treasury Secretaría de Hacienda || José R. Nogueras || style="background-color:#FFB6B6" | || Popular Democratic Party || 1958 - 1963
 * Jorge Font Saldaña || style="background-color:#FFB6B6" | || Popular Democratic Party || 1964 - 1968
 * rowspan="1" | Secretary of Public Instruction Secretaría de Instrucción Pública || Cándido Oliveras || style="background-color:#FFB6B6" | || Popular Democratic Party || 31 October 1960 - 2 January 1965
 * rowspan="1" | Secretary of Health Secretaría de Salud || Guillermo Arbona Irizarry  || style="background-color:#DDDDDD"| || Ind. || 25 July 1957 - 2 January 1966
 * rowspan="2" |Secretary of the Treasury Secretaría de Hacienda || José R. Nogueras || style="background-color:#FFB6B6" | || Popular Democratic Party || 1958 - 1963
 * Jorge Font Saldaña || style="background-color:#FFB6B6" | || Popular Democratic Party || 1964 - 1968
 * rowspan="1" | Secretary of Public Instruction Secretaría de Instrucción Pública || Cándido Oliveras || style="background-color:#FFB6B6" | || Popular Democratic Party || 31 October 1960 - 2 January 1965
 * rowspan="1" | Secretary of Health Secretaría de Salud || Guillermo Arbona Irizarry  || style="background-color:#DDDDDD"| || Ind. || 25 July 1957 - 2 January 1966
 * rowspan="1" | Secretary of Public Instruction Secretaría de Instrucción Pública || Cándido Oliveras || style="background-color:#FFB6B6" | || Popular Democratic Party || 31 October 1960 - 2 January 1965
 * rowspan="1" | Secretary of Health Secretaría de Salud || Guillermo Arbona Irizarry  || style="background-color:#DDDDDD"| || Ind. || 25 July 1957 - 2 January 1966
 * rowspan="1" | Secretary of Health Secretaría de Salud || Guillermo Arbona Irizarry  || style="background-color:#DDDDDD"| || Ind. || 25 July 1957 - 2 January 1966
 * rowspan="1" | Secretary of Health Secretaría de Salud || Guillermo Arbona Irizarry  || style="background-color:#DDDDDD"| || Ind. || 25 July 1957 - 2 January 1966
 * rowspan="1" | Secretary of Health Secretaría de Salud || Guillermo Arbona Irizarry  || style="background-color:#DDDDDD"| || Ind. || 25 July 1957 - 2 January 1966


 * rowspan="2" | Secretary of Labor Secretaría del Trabajo || Fernando Sierra Berdecía  || style="background-color:#FFB6B6" | || Popular Democratic Party  || 25 July 1952 - 1962


 * Frank Zorrilla Maldonado  || style="background-color:#FFB6B6" | || Popular Democratic Party  || 1962 - 1965
 * }
 * }
 * }