List of number-one hits of 2018 (Argentina)

Argentina's charts are provided by the Argentine Chamber of Phonograms and Videograms Producers (CAPIF) and Monitor Latino. While the former one provides monthly charts on physical album and digital singles sales.

Albums
This is a list of the number-one hits of 2018 on the Argentina's Albums Charts chart, ranked by the Argentine Chamber of Phonograms and Videograms Producers (CAPIF).

Singles
This is a list of the number-one hits of 2018 on the Argentina's Singles Charts chart, ranked by the Argentine Chamber of Phonograms and Videograms Producers (CAPIF).