Luiaondo (Spanish: Luyando) is a village and concejo in the municipality of Ayala/Aiara, Álava, Basque Country, Spain.

It is served by a Cercanías Bilbao railway station.

[3] The Árbol Malato [es], a tree which marked the boundary of the Lordship of Biscay, was located in Luiaondo.

By the 18th century the tree had disappeared, and in 1730 a cross was built at its supposed location.

[4] This article about a location in the Basque Country, Spain, is a stub.