Carlo Weis (born 4 December 1958) is a Luxembourgish former professional footballer who played as a defender.
He was Luxembourg's most capped player of all-time from November 1995 until Jeff Strasser overtook his tally in 2008.
He played three seasons for the Genk outfit and then moved across the border to join Stade Reims.
Weis made his debut for Luxembourg in a March 1978 friendly match against Poland.
In an international career spanning over 20 years, he went on to earn a record-breaking 87 caps, scoring one goal.