Kalonji may refer to:
People Albert Kalonji (1929–2015), Congolese politician Gretchen Kalonji (born 1953), American scientist and academic administrator Sizzla or Sizzla Kalonji (born 1976), Jamaican reggae musician Kalonji Kashama (born 1991), Canadian football player
Other The black seeds of the plant Nigella sativa, used as a spice in Asian cooking Kalonji, the title in Europe and Asia of the album Freedom Cry by Sizzla