Eilert is a male given name. Notable people with the given name include: Edvard Eilert Christie (1773–1831), Norwegian businessperson and politician. Eilert Bøhm (1900–1982), Norwegian gymnast who competed in the 1920 Summer Olympics. Eilert Dahl (1919–2004), Norwegian Nordic skier who competed in the late 1940s and early 1950s. Eilert Ekwall (born 1877), Professor of English at Lund University, Sweden, from 1909 to 1942. Eilert Falch-Lund (1875–1960), Norwegian sailor who competed in the 1908 and 1912 Summer Olympics.
https://en.wikipedia.org/wiki/Eilert