"I Knew I Loved You" is a song by Australian pop duo Savage Garden, released through Roadshow Music and Columbia Records as the second single from their second and final studio album, Affirmation (1999).

[1] Hayes and Jones went on to compose "I Knew I Loved You" and submitted it to the record label's executives, who were delighted with the result as they felt it was a strong contender to eclipse the success of "Truly Madly Deeply".

[4] Larry Flick from Billboard described the song "as cool and crisp as the autumn air, this simple, direct ballad projects a sweet message of knowing love when you see it."

He noted that the song "glides along amid a soft, easy beat, with vocalist Hayes sounding more at ease and confident than ever, like he's singing a timeless classic."

It was the last song by an Australian artist to reach the top of the Billboard Hot 100 for over 12 years, until Gotye peaked at number one with his single "Somebody That I Used to Know" in 2012.

The accompanying music video for "I Knew I Loved You" was filmed by director Kevin Bray in August 1999 on a New York City Subway set that had previously been used on the sitcom Seinfeld.