"Grandpa Told Me So" is the title of a song written by Mark Alan Springer and James Dean Hicks, and recorded by American country music artist Kenny Chesney. It was released in November 1995 as the third single from the album All I Need to Know. The song reached number 23 on the Billboard Hot Country Singles & Tracks chart.
"Grandpa Told Me So" debuted at number 75 on the U.S. Billboard Hot Country Singles & Tracks for the week of November 6, 1995.