Natalja Jonckheere (born 21 October 1970) is a retired Belgian high jumper.
She finished ninth at the 1988 World Junior Championships, tenth at the 1989 European Indoor Championships.[1] twelfth at the 1989 World Indoor Championships, ninth at the 1995 World Indoor Championships and tenth at the 1998 European Indoor Championships.[2] She also competed at the 1994 European Championships[3] and the 1995 World Championships without reaching the final.
She became Belgian champion in 1988, 1991, 1994 and 1995. Her main domestic competitor was Sabrina De Leeuw.[4] Her personal best jump is 1.95 metres, achieved in July 1995 in Norderney.