The kreuzer was a German silver coin. Kreuzer may also refer to:

• Andrea Kreuzer (born 1984), Austrian figure skater
• Christoph Kreuzer (born 1982), Dutch ski jumper
• Erwin Kreuzer (1878 – 1953), a German bishop of the Old Catholic Church
• Gottfried Kreuzer (active mid-1970s), Austrian luger
• Hansüli Kreuzer (born 1950), Swiss cross-country skier
• Heinrich Kreuzer (1819 – 1900), Austrian tenor
• Hermann Kreuzer (active 1880), German rugby player
• Jakob Kreuzer (born 1995), Austrian footballer
• June Kreuzer (1944–2024), U.S. politician in Ohio
• Lisa Kreuzer (born 1945), German television and film actor
• Martin Kreuzer (born 1962), German Mathematics professor and Grandmaster of Correspondence Chess
• Matthew Kreuzer (born 1989), Australian rules footballer
• Niklas Kreuzer (born 1993), German footballer
• Oscar Kreuzer (1887 - 1968), German tennis player
• Oliver Kreuzer (born 1965), German footballer
• Victoria Kreuzer (born 1989), Swiss ski mountaineer and mountain runner

• Kreuzer P Class, a type of German heavy cruiser planned in the 1930s
• Kreuzer-Pelton House, a historic house erected in 1722 in New York, New York
• The Kreuzer Cup, a controversial Australian football match involving Matthew Kreuzer

• Kreutzer (disambiguation)