"If Tomorrow Never Comes" is a song recorded by American country music artist Garth Brooks. Written by Brooks and Kent Blazy, it was released in August 1989 as the second single from his album Garth Brooks and also appears on The Hits, The Limited Series and Double Live. This was his first #1 single on the Billboard Country Singles chart. It is also sometimes referred to as his signature song. "If Tomorrow Never Comes" was named Favorite Country Single in the American Music Awards of 1991. It has subsequently become one of Brooks' most popular songs for other artists to perform. The song has been covered by several artists, including Ronan Keating, who took it to Number 1 in the UK Singles Chart in May 2002.

This is the first country love song released by Brooks. A man lies awake at night, thinking what would happen in his love's mind if he were to die the next day. The first line in the chorus reads: "If tomorrow never comes, will she know how much I love her?" He goes on to compare this situation with his own lost loved ones, and how he made a promise to say each day how much she means to him. The song begins with a soft guitar solo and gradually builds up to a more orchestrated accompaniment. Brooks has written many love songs since.

Garth provided the following background information on the song in the CD booklet liner notes from The Hits:

"'If Tomorrow Never Comes" will probably always be my signature song. I ran the idea for this song by what seemed like a thousand writers and no one really seemed to understand what I was looking for. On the day that Bob Doyle, my co-manager, introduced me to Kent Blazy, I passed this idea by Kent and he had the first verse down within fifteen seconds. I could tell he just felt it. Kent Blazy is a wonderful man, full of love and energy, and if we never write again, I hope that we are always friends first. Think you Ireland for this moment."

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