Joseph "Joe" Knollenberg (born November 28, 1933) is a politician from the U.S. state of Michigan. From 1993 to 2009, he was a Republican member of the U.S. House of Representatives, representing Michigan's 9th congressional district.

He was defeated by Gary Peters in the 2008 election by a margin of 52% to 43%.

Knollenberg was born in Mattoon, Illinois and graduated from Eastern Illinois University in 1955. He has lived in the Detroit area since 1959, and has lived in Oakland County since 1967. After graduation, he served in the United States Army from 1955 to 1957. He then spent more than three decades as an insurance agent. Initially working for New York Life and Sears, he founded his own agency in the late 1980s. He served as chairman of the Oakland County Republican Party from 1978 to 1982.