Jonell is a feminine given name and surname. Notable people with name include:
Given name Jonell (born 1977), American singer JoNell Bakke, American politician JoNell Kennedy (born 1986), American actress and film producer Jonell Nash (1942–2015), American food editor
Surname Anders Jonell (born 1973), Swedish freestyle skier Lynne Jonell (born 1956), American children's writer