Tideman is a surname. Notable people with the surname include:
Bertha Tideman-Wijers (1887-1976), Dutch composer Bruno Tideman (1834-1883), Dutch naval engineer Magnus Tideman (born 1963), former professional tennis player from Sweden Nicolaus Tideman (born 1943), Professor of Economics at Virginia Polytechnic Institute and State University Philip Tideman (1657–1705), Dutch Golden Age painter Robert Tideman of Winchcombe (died 1401), medieval Bishop of Llandaff and Bishop of Worcester
See also Tideman Johnson Natural Area, city park of about 7.7 acres (3.1 ha) in southeast Portland, in the U.S. state of Oregon