Menoio (Spanish: Menoyo) is a hamlet and concejo in the municipality of Ayala/Aiara, in Álava province, Basque Country, Spain.

[3] The first written reference to Menoio dates from 1114, in which a certain Senior Alvar López de Menoio was mentioned in the donation of the monastery of Obaldia in Madaria to San Millán.

[3] The sanctuary of Our Lady of Etxaurren, patron saint of the municipality, is on the foothills of mount Eskorieta [eu].

A small rural neighborhood centered around the sanctuary existed until the mid-20th century.

The most notable civil building in Menoio is the palace of Santa Casilda, built in the late 17th century.