In the Lonely Hour is the debut studio album by English recording artist Sam Smith. It was released in the United Kingdom on 26 May 2014 via Capitol Records and Method Records. In the United States, it was released on 17 June 2014. The album includes the hit singles "Money on My Mind" and "Stay with Me", both of which were number one in the UK; the latter becoming a hit worldwide, peaking in the top ten in over 20 countries, including reaching number two in the US. The album's third hit single, "I'm Not the Only One", reached number three in the UK and number five in the US. A deluxe edition of the album contains five bonus tracks, including a solo acoustic version of Disclosure's single "Latch" and Naughty Boy's number-one single "La La La", on both of which Smith provided guest vocals.

When In the Lonely Hour was released, it received mostly lukewarm reviews from critics, many of whom praised Smith's singing but were critical of the songwriting. The album was a commercial success worldwide, becoming a number one chart hit in Australia, Ireland, New Zealand, South Africa, Sweden, and the United Kingdom. It was the second best-selling album of 2014 in the UK, and the third best-selling in the United States that year.