Cleiton Mendes dos Santos, known as Cleiton, (born 12 September 1978) is a Brazilian former footballer who played as a midfielder.
He joined Hong Kong First Division League team South China for a short-term loan in 2007 as a strengthening of the squad for Hong Kong FA Cup 2006–07.
As he did not meet the deadline of league player registration, he could not represent SCAA for the league matches in the season.
He scored his only goal for South China in his debut match against Wofoo Tai Po and South China won 3–0 in this quarter-final match of FA Cup.
This biographical article related to a Brazilian association football forward born in the 1970s is a stub.