A Brief Inquiry into Online Relationships is the third studio album by The 1975, released on 30 November 2018 by Dirty Hit and Polydor Records. It was produced entirely by band members George Daniel and Matthew Healy, and is the band's first album not to be produced with regular collaborator Mike Crossey.
Upon release, the album received widespread critical acclaim and was considered one of the best albums of 2018. Critics applauded its eclectic nature and lyrical relevance; in relation to the lyrical themes and narrative, some critics drew comparison to Radiohead's O.K. Computer. The album reached number one in the UK and number four in the US, becoming their second album to reach the top five in the US, and their third album to reach number 1 in the UK.
The album has been considered by various publications as one of the best albums of the 2010s. NME placed it at number 16 on their list of Best Albums of the Decade. Additionally, Albumism included it on their unranked list of The 110 Best Albums of the 2010s; Pitchfork placed it at number 157 on their list of the 200 Best Albums of the 2010s; and Uproxx placed it at number 74 on their list of the Best Albums of the 2010s.