Wirfin Y. Obispo Vargas (born September 26, 1984) is a Dominican professional baseball pitcher for the Olmecas de Tabasco of the Mexican League.

Obispo signed with the Yomiuri Giants of Nippon Professional Baseball for the 2007 season, but only made 2 appearances for the club, pitching a scoreless inning in total.

In 2008, Obispo appeared in 37 games for Yomiuri's minor league club, recording a 4.24 ERA with 41 strikeouts, but did not play with the main team.

On November 6, 2010, Obispo was traded to the Hokkaido Nippon-Ham Fighters in exchange for outfielder Toshimasa Konta and southpaw Hideki Sunaga.

[4] He split the 2012 season between the Triple-A Louisville Bats and the Double-A Pensacola Blue Wahoos, where he pitched to a 5–3 record with a 3.00 ERA in 35 games, 13 of them starts.

On November 5, 2012, Obispo signed a minor league deal with the Atlanta Braves organization that included an invitation to spring training.

He pitched to a 1.99 ERA in 24 games for Biloxi and the Triple-A Colorado Springs Sky Sox before being released on July 25, 2015.

On July 12, 2021, Obispo was traded to the Acereros de Monclova of the Mexican League in exchange for pitchers David Richardson and Adam Quintana.