MoreiraPortuguese Derived from Portuguese amoreira meaning "mulberry tree".
NogueiraPortuguese, Galician From Portuguese and Galician nogueira meaning "walnut tree", from the Late Latin nucarius, ultimately from Latin nux meaning "nut".
OrtegaSpanish From a Spanish place name (belonging to various villages) derived from ortiga "nettle".
PadillaSpanish From various Spanish place names, derived from Spanish padilla, Latin patella meaning "shallow dish", used to indicate a depression in the landscape.
PereiraPortuguese, Galician From Portuguese and Galician pereira meaning "pear tree", ultimately from Latin pirum meaning "pear".
PoirierFrench Means "pear tree" in French, originally a nickname for someone who lived close to such a tree.
ProcházkamCzech Means "walk, wander, stroll" in Czech. This was an occupational name for a travelling tradesman.
QuinnIrish Anglicized form of Irish Ó Cuinn meaning "descendant of Conn".
QuiñonesSpanish From various Spanish place names derived from quiñón meaning "shared piece of land", derived from Latin quinque "five".