Don Carlos II Coloma y de Saa, knight of Santiago, 1st Marquess of Espinar (Alicante, 9 February 1566 – 23 November 1637, Madrid) was a Spanish military commander, diplomat and author.
He was the fourth son out of 14 children from the third marriage of don Juan IV Coloma y Cardona, 1st Count of Elda.
He married a Flemish noblewoman, Marguerite of Gavere-Liedekercke, Noble canoness of the Saint Waltrude Collegiate Church.
Coloma joined the army as an ensign in 1581 and campaigned in Portugal, Sicily, the Netherlands and Germany, eventually making his way up to the rank of maestro de campo general.
Recalled when war broke out between England and Spain in 1624, he participated in Spinola's Siege of Breda (August 1624 – June 1625) and is supposedly portrayed on Velázquez' Las Lanzas.