Lachey is a surname. Notable people with the name include:
Drew Lachey (born 1976), American singer and actor, the brother of Nick Lachey Jim Lachey (born 1963), American radio analyst for college football and former National Football League player Luke Lachey (born 2001), American football player Nick Lachey (born 1973), American singer-songwriter, actor, producer, and television personality Vanessa Lachey (born 1980), American television personality and beauty queen
See also Lechay, another surname