Presidents of the Republic
Anastasio Somoza García         1 Jan 1937 -  1 May 1947 (+1956)a [picture] PLN 
Leonardo Argüello Barreto       1 May 1947 - 26 May 1947 (+)                PLN
Benjamïn Lacayo Sacasa         26 May 1947 - 15 Aug 1947 (+1959)            PLN (acting)
Vïctor Manuel Román y Reyes    15 Aug 1947 -  6 May 1950 (+)      [picture] PLN 
Manuel Fernando Zurita          6 May 1950 -  7 May 1950                    PLN (acting)
Anastasio Somoza García         7 May 1950 - 29 Sep 1956 (+)a     [picture] PLN 
Luis Anastasio Somoza Debayle  29 Sep 1956 -  1 May 1963 (+1967)  [picture] PLN 
René Schick Gutiérrez           1 May 1963 -  3 Aug 1966 (+)      [picture] PLN  
Orlando Montenegro Medrano      3 Aug 1966 -  4 Aug 1966 (+19..)            PLN (acting)
Lorenzo Guerrero Gutiérrez      4 Aug 1966 -  1 May 1967 (+1981)  [picture] PLN 
Anastasio Somoza Debayle        1 May 1967 -  1 May 1972 (+1980)a [picture] PLN 

National Junta of Government ("Triunvirate")
 -Gen. Roberto Martínez Lacayo                           (+1984)            PLN, military
 -Alfonso Lovo Cordero                                            [picture] PLN
 -Fernando Bernabé Agüero Rocha                                   [picture] PCN (to 1 Mar 1973)  
 -Edmundo Paguaga Irías         1 May 1972 -  1 Dec 1974                    PCN  (from 1 Mar 1973)

Presidents of the Republic
Anastasio Somoza Debayle        1 Dec 1974 - 17 Jul 1979 (+1980)a [picture] PLN 
Francisco Urcuyo Maliaños      17 Jul 1979 - 18 Jul 1979 (+2001)  [picture] PLN (acting)

Junta of Government of National Reconstruction (*)
 -José Daniel Ortega Saavedra                                     [picture] FSLN (coordinator from 4 Mar 1981)
 -Sergio Ramírez Mercado                                          [picture] G-12, FSLN  
 -Violeta Barrios de Chamorro                                     [picture] UDEL (to 19 Apr 1980)
 -Luis Alfonso Robelo Callejas                                    [picture] MDN (to 22 Apr 1980)                   
 -Moisés Hassán Morales                                           [picture] MPU (to 4 Mar 1981)                           
 -Arturo José Cruz Porras                                         [picture] (19 May 1980 - 4 Mar 1981) 
 -Rafael Ángel Córdova Rivas   18 Jul 1979 - 10 Jan 1985                    (from 19 May 1980)
                             
Presidents of the Republic
José Daniel Ortega Saavedra    10 Jan 1985 - 25 Apr 1990          [picture] FSLN 
Violeta Barrios de Chamorro    25 Apr 1990 - 10 Jan 1997          [picture] UNO
José Arnoldo Alemán Lacayo     10 Jan 1997 - 10 Jan 2002          [picture] PLC/AL
Enrique José Bolaños Geyer     10 Jan 2002 - 10 Jan 2007          [picture] PLC
José Daniel Ortega Saavedra    10 Jan 2007 -                      [picture] FSLN