List of UK Country Albums Chart number ones of 2018

These are the Official Charts Company's UK Country Albums Chart number ones of 2018. The chart week runs from Friday to Thursday with the chart-date given as the following Thursday. Chart positions are based the multi-metric consumption of country music in the United Kingdom, blending traditional album sales, track equivalent albums, and streaming equivalent albums. The chart contains 20 positions.

In the iteration of the chart dated 5 January, From A Room: Volume 2 by Chris Stapleton spent its third non-consecutive week at number one, but was then displaced by Glen Campbell's final album Adiós, which returned for its twenty fourth week in the top spot following his death in August 2017. Later in the year, Sings for the King, a compilation of previously unreleased demos recorded by Campbell for Elvis Presley spent three weeks at the chart peak, giving Campbell two number one albums in 2018. In March, Kelsea Ballerini's second album Unapologetically finally reached number one, nineteen weeks after debuting on the chart, and held the top spot for three weeks, before being replaced by Kacey Musgraves' critically acclaimed Golden Hour, which also spent three weeks at number one and returned to the peak twice later in the year. Accidentally on Purpose, the third studio album by British duo The Shires, was released in April and spent a leading fifteen weeks at number one, including fourteen consecutive weeks. It was ultimately displaced by Talk of This Town, the debut album by Irish singer-songwriter Catherine McGrath, which held the top spot for four weeks. Carrie Underwood's Cry Pretty also spent four consecutive weeks at number one. Other artists who spent multiple weeks at the top of the chart include The Wandering Hearts, Clare Bowen, Pistol Annies, and Ashton Lane. The final number one of the year was Musgraves' Golden Hour.