Neil Kannas Wagner (born January 1, 1984) is an American former professional baseball pitcher.

On November 15, 2012, the Toronto Blue Jays signed Wagner to a minor league contract with an invitation to Spring Training.

[7] Wagner recorded his first career win in a game on June 7 against the Texas Rangers, pitching 11⁄3 innings in relief.

After posting a 2–3 record with a 3.26 ERA and 16 strikeouts in 20 appearances, Wagner was optioned to Triple-A Buffalo on July 21 to make room on the 25-man roster for Melky Cabrera's return from the disabled list.

[13] On September 12, Wagner signed a two-year minor league contract with the Tampa Bay Rays, that included an invitation to 2016 spring training.

[17] On December 13, 2017, Wagner signed with the Saitama Seibu Lions of Nippon Professional Baseball (NPB).