Casilda is a Cuban village and consejo popular ("people's council", i.e. hamlet) of the municipality of Trinidad, Sancti Spíritus Province.

[2] Casilda is located south of Trinidad (5 km ) by the Gulf of Ana María, on the Caribbean coast.

[4] The village is 30 km from Valle de los Ingenios, 75 from Sancti Spíritus, 86 from Cienfuegos, and 102 from Santa Clara.

Casilda is the southern terminus of the railway line which links Placetas and Fomento to Trinidad, has a small harbor, and is 4 km from Alberto Delgado Airport.

The state highway "Circuito Sur" (CS), crossing Trinidad and linking it to Cienfuegos and Sancti Spíritus, is 5 km from Casilda's centre.