Carlos Santana | Juan Carlos I of Spain | William Carlos Williams | San Carlos | Carlos Menem | Don Carlos | Wendy Carlos | Roberto Carlos | Carlos the Jackal | Carlos Sastre | Carlos Gardel | Carlos | San Carlos Water | Carlos Saura | Roman Catholic Diocese of San Carlos de Ancud | John Carlos | Carlos Fuentes | San Carlos de Bariloche | Carlos Monzón | Carlos I of Portugal | University of San Carlos | San Carlos, Falkland Islands | Carlos III | Roberto Carlos (singer) | Carlos Zingaro | Carlos Vives | Carlos Varela | Carlos Queiroz | Carlos P. Romulo | Universidad de San Carlos de Guatemala |
The name was chosen in honor of Carlos IV of Spain, then the prince in line to be heir of his father's throne.
In Mexico Malaspina received instructions from the Spanish king, Carlos IV requiring a change of plans.
The King of Spain, Carlos IV, issued the Royal Order of April 14, 1789, requiring the establishment at Nootka Sound be maintained with "honour and firmness".