Reinert

Companies
 * Reinert (Company), sausage making company in Versmold, Germany founded 1931, owned by the family

Reinert is a surname. Notable people with the surname include:


 * Al Reinert (1947–2018), American journalist and film producer
 * Alexander A. Reinert, professor of law
 * Bianca Reinert (c.1966–2018), Brazilian ornithologist
 * Emil-Edwin Reinert (1903–1953), French film director and screenwriter
 * Emmanuel Reinert
 * Erik S. Reinert (born 1949), Norwegian economist
 * Ernst-Wilhelm Reinert (1919–2007), German military aviator
 * Gesine Reinert, statistician at Oxford
 * Johan Reinert Reiersen (1810–1864), Norwegian-American writer
 * Katrin Reinert (born 1988), German rower
 * Paul C. Reinert (1910–2001), president of Saint Louis University
 * Rick Reinert (1925–2018), American animator
 * Robert Reinert (1872–1928), German film director and screenwriter
 * Roger Reinert (born 1970), American politician
 * Sean Reinert (1971–2020), American drummer
 * Sebastian Reinert (born 1987), German footballer
 * Susan Reinert (died 1979), American murder victim