See also: planas
- A surname.
- According to official data by the Instituto Nacional de Estadística in 2016, Planas occurs in Spain as a first surname by 6,774 individuals, and as a second surname by 6,461 individuals. It is prevalent in Barcelona and Girona.
- A surname, from Spanish.
According to data collected by Forebears in 2014, Planas is the 2,785th most common surname in the Philippines, occurring in 4,447 individuals.