Rancho San Carlos

Rancho San Carlos may refer to:


 * Rancho San Carlos de Jonata, a Mexican land grant in present-day Santa Barbara County, California, United States
 * Santa Lucia Preserve, Monterey County, California, United States, formerly known as Rancho San Carlos
 * Rancho San Carlos, an estate at San Carlos Nuevo Guaymas, a beachfront subdivision in Guayamas, Sonora, Mexico
 * Rancho Potrero de San Carlos, a Mexican land grant in present-day Monterey County, California, United States