Neil Seery (born 30 August 1979) is a retired Irish professional mixed martial artist, who most recently competed in the flyweight division of the UFC. Beginning his career in 2005, Seery also competed for BAMMA, Cage Warriors, and RINGS. He was the Cage Warriors Flyweight Champion.

Seery made his professional debut in 2005 and after starting off his career at 1–4, Seery was able to bounce back, compiling a record of 8–8 before he began competing for the Cage Warriors promotion in his home country of Ireland. Under the promotion's banner, Seery went 5–1, capturing the Flyweight Championship in the process.

Seery made his UFC debut at UFC Fight Night 37 on 8 March 2014 as a replacement for Ian McCall against Brad Pickett, and was signed to a four-fight contract. A huge underdog against Pickett, Seery lost unanimously on the judges' score cards.

In his second fight for the promotion, Seery faced Phil Harris at UFC Fight Night 46 on 19 July 2014. This was a rematch of Seery's fight with Harris at BAMMA 3, which Seery lost via unanimous decision. He won the fight by unanimous decision.

Seery was expected to face Richie Vaculik at UFC Fight Night 55 on 8 November 2014. Subsequently, Seery pulled out of the fight and was replaced by Louis Smolka.

Seery faced Chris Beal on 24 January 2015 at UFC on Fox 14. He won the back-and-forth fight by unanimous decision.

Seery faced Louis Smolka on 11 July 2015 at UFC 189. He lost the fight by unanimous decision.

Seery faced Jon Delos Reyes on 24 October 2016 at UFC Fight Night 76. He won the fight via submission in the second round. The victory also produced a Performance of the Night bonus.