Isabella Crettenand-Moretti, née Moretti (born 26 August 1963), is a Swiss ski mountaineer, marathon mountain biker, long-distance and mountain runner. She lives in Zinal.
Her twin sister Cristina Favre-Moretti also competes in endurance sport events.
2004:1st, World Championship relay race (together with Catherine Mabillard and Cristina Favre-Moretti)1st, Trophée des Gastlosen, together with Cristina Favre-Moretti2nd, World Championship vertical race2nd, World Championship team race (together with Jeanine Bapst)3rd, World Championship single race3rd, World Championship combination ranking2005:1st, European Championship team race (together with Cristina Crettenand-Moretti)1st, European Championship relay race (together with Cristina Favre-Moretti and Gabrielle Magnenat)1st, Pierra Menta (together with Cristina Favre-Moretti)2nd, European Championship combination ranking3rd, European Championship single race4th, European Championship vertical race2004: 1st and course record, together with Catherine Mabillard and Cristina Favre-Moretti2008: 3rd, together with Catherine Mabillard and Cristina Favre-Moretti2010: 1st, Iron-Terrific, Crans-MontanaGrand Raid Cristalp
1999: 1st, 131 km2003: 2nd, 131 km 