Robert Smyser, 27, of Florence, was found guilty of aggravated criminal sodomy Friday.
A jury of nine men and three women heard testimony last week and deliberated five hours to reach its verdict.
The case was prosecuted by Amy Hanley, a special prosecutor with Kansas attorney general’s office.
Smyser was accused of sodomy of a child under the age of 14 between April 4 and 7, 2008, in Florence.
Sentencing has not been set. He remains in the county jail.