Isabel Checa Porcel (born December 27, 1982 in Silla, Valencia) is a Spanish long-distance runner.
Checa represented Spain at the 2008 Summer Olympics in Beijing, where she competed for the women's 10,000 metres.
She finished the race in twenty-ninth place by fourteen seconds behind China's Dong Xiaoqin, with a time of 33:17.88.Checa is the twin sister of long-distance runner Dolores Checa, who also competed for the women's 5000 metres at the 2008 Summer Olympics.