"What a Difference You've Made in My Life"
Single by Ronnie Milsap
from the album It Was Almost Like a Song
B-side	"Selfish"
Released	November 1977
Recorded	April 1977
Genre	Country, inspirational
Length	3:59
Label	RCA
Songwriter(s)	Archie Jordan
Producer(s)	Ronnie Milsap, Tom Collins
Ronnie Milsap singles chronology
"It Was Almost Like a Song" (1977) "What a Difference You've Made in My Life" (1977) "Only One Love in My Life" (1978)

"What a Difference You've Made in My Life" is an inspirational song written by Archie Jordan and first made famous by two artists during 1977: then-teenage Christian music singer Amy Grant and country music singer Ronnie Milsap.

Amy Grant's version was included on her self-titled debut album, which was sold largely in Christian bookstores and outlets. The song was released as a single to Christian-oriented radio stations, charted at No. 5 on the US Christian charts, and helped Grant become well known in what was then a small sub-genre of religious-themed music.^{[citation needed]}

However, Milsap's version became better-known. It was released in November 1977 as the second single from the album It Was Almost Like a Song. The song soon scored the Billboard Hot Country Songs chart and was his ninth No. 1 song on that chart. Milsap re-recorded the song for his 2009 country gospel album, Then Sings My Soul.

In 1978, B. J. Thomas covered the song on his Happy Man album, which became a Top 10 Christian hit.

• B. J. Thomas - What a Difference You've Made on YouTube
• Ronnie Milsap - What a Difference You've Made in My Life on YouTube