Yandell is both a surname and given name.
Surname Benjamin Yandell (1951–2004), American author David Wendel Yandell (1826–1898), American physician and educator Enid Yandell (1869–1934), American sculptor Keith Yandell (1938–2020), American philosopher and writer Lance Yandell (born 1970), American football player Lunsford Yandell (1805–1878), American physician and educator Lunsford Yandell Jr. (1837–1884), American physician and educator Paul Yandell (1935–2011), American musician Ralph Yandell (1892–1982), British gymnast
Given name Yandell Henderson (1873–1944), American physiologist