User:03md/List of UK top 40 singles in 2019

See also: Lists of UK top 10 singles and Lists of UK top 40 singles

The UK Singles Chart is one of many music charts compiled by the Official Charts Company that calculates the best-selling singles of the week in the United Kingdom. Since 2004 the chart has been based on the sales of both physical singles and digital downloads, with airplay figures excluded from the official chart. Since 2014, the singles chart has been based on both sales and streaming; in 2019 it uses the ratio of 150 streams equivalent to one sale (not 100:1 as previously).

Chart rules were altered again from 7 July 2018 to help new artists break through by limiting the number of tracks by the same artist allowed in the chart at the same time to 3. The streaming to sales ratio remained largely unchanged but for songs which have spent a high number of weeks in the chart the ratio is altered to 300:1. This list shows singles that peaked in the Top 40 of the UK Singles Chart during 2019, as well as songs which peaked in 2018 and 2020 but were in the top 40 in 2019. The entry date is when the song appeared in the top 40 for the first time (week ending, as published by the Official Charts Company, which is six days after the chart is announced).

Three-hundred and one singles were in the top forty this year. Eighteen singles from 2017 and forty-four singles from 2018 remained in the top 40 for several weeks at the beginning of the year, or re-entered during the year. "Advice" by Cadet & Deno Driz, "Baby Shark" by Pinkfong, "Going Bad" by Meek Mill featuring Drake, "Hold My Girl" by George Ezra, "Mo Bamba" by Sheck Wes, "Nothing Breaks Like a Heart" by Mark Ronson featuring Miley Cyrus, "Rewrite the Stars" by James Arthur and Anne-Marie, "Ruin My Life" by Zara Larsson, "Sunflower by Post Malone and Swae Lee, "Sweet but Psycho" by Ava Max all first charted in 2018 but reached their peak in 2019.

The list of singles that charted in 2019 but did not peak until 2020 include "Adore You" by Harry Styles, "Before You Go" by Lewis Capaldi, "Better Half of Me" by Tom Walker, "Blinding Lights" by The Weeknd, "Don't Rush" by Young T & Bugsey featuring Headie One, "Falling" by Harry Styles, "Falling" by Trevor Daniel, "Gangsta" by Darkoo & One Acen, "Happy Christmas (War Is Over)" by John Legend, "Into the Unknown" by Idina Menzel featuring Aurora, "Own It" by Stormzy featuring Ed Sheeran & Burna Boy, "Pump It Up!" by Endor, "River" by Ellie Goulding, "Roxanne" by Arizona Zervas, "This Is Real" by Jax Jones featuring Ella Henderson and "Watermelon Sugar" by Harry Styles. A selection of Christmas songs which had charted in 2018 returned to the chart at the end of the year and reached a new peak for their latest run in 2020.

One-hundred and one artists had multiple entries in the top forty in 2019 with Dave having the most entries (10). Singles that reached the top ten this year are featured here but also included in their own article.

Top-forty singles

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Entries by artist
The following table shows artists who achieved two or more top 40 entries in 2019, including songs that reached their peak in 2018 or 2020. The figures include both main artists and featured artists. Appearances on ensemble charity records are also counted for each artist.