List of number-one singles of 1998 (Spain)

This is a list of the songs that reached number one in Spain during 1998, according to the weekly singles chart compiled by Promusicae (Productores de Música de España), then known as AFYVE (Asociación Fonográfica y Videográfica Española).

The chart measured sales of physical singles and was based on data compiled from record stores across Spain.

Information on specific artists, song titles, and chart dates for each number-one single during 1998 can usually be found in the Promusicae archives (though comprehensive online archives for that specific year may be incomplete or require specific access). Consulting historical Spanish music publications and industry reports from that period may also provide detailed information.