Ingeborg Cécilia Mourgue d'Algue (née Perslow) (born 4 August 1946, in Sweden) is a French - Swedish amateur golfer.

[2][3] Representing Sweden, at 18 years of age, she was the youngest competitor at the inaugural world amateur team championship, the 1964 Espirito Santo Trophy at Golf de Saint Germain, outside Paris in her future home country of France, of which she did not know at the time.

[2][3][5][6][7] In 1981, 15 years after they met in the final of the Swedish Championship, Morgue d'Algue and Wollin played on the winning side and together in the foursome matches for the Continent of Europe against Great Britain and Ireland at the Vagliano Trophy.

She practiced under instructing professional Henri Mourguillat, who also trained French stars of the time Gaëtan Mourgue d'Algue and Catherine Lacoste.

After winning the 1995 individual NCAA Division I Women's Golf Championships in United States, Kristel turned professional and played on the Ladies European Tour.