Isabelle Arnould

{{short description|Belgian swimmer}}

{{Infobox sportsperson

|birth_date=

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|medaltemplates={{MedalSport | Women's swimming}}

{{MedalCountry | {{BEL}} }}

{{MedalCompetition|Summer Universiade}}

{{MedalSilver | 1993 Buffalo | 1500 m freestyle}}

{{MedalBronze | 1993 Buffalo | 400 m freestyle}}

}}

Isabelle Arnould (born 6 December 1970) is a retired female freestyle and butterfly swimmer from Belgium.

Arnould was born in Liège, and represented her native country at two consecutive Summer Olympics, starting in Seoul, South Korea (1988). She is best known for winning two medals at the 1993 Summer Universiade in Buffalo, United States.