Isidro Nozal Vega (born 18 October 1977) is a Spanish former professional road racing cyclist.

In 2005, Vega was suspended for two weeks after being tested with a hematocrit level above 50 before the start of Dauphine Libere.

[1] In 2006, he was initially implicated in the Operación Puerto doping case, but was cleared of any wrongdoing by Spanish officials.

[2] He later admitted his involvement, saying he did three blood transfusions with Fuentes in the season before the 2005 Dauphine Libere, but denying he doped.

[4] In September 2009 Nozal and two teammates (Nuno Ribeiro and Héctor Guerra) were announced to have tested positive for EPO-CERA in samples taken for the previous month's Tour of Portugal.