He has been beaten on a 3-2 split decision against Indonesia's Aldoms Suquor in the last 64.
Earlier this year he secured a bronze medal at the European Games.
He beat Spain's Martin Molina Salvador on a split decidion in their light-flyweight boxing quarter-final in Minsk.
Buckley then advanced to the semi-finals but lost out along with Michael Nevin and Grainne Walsh.
The Wicklow native won Ireland's first medal at this Games.
Two Arrested After Greystones Gym Burglary
The pair are expected before Bray District Court today.
Wicklow TD Says Local Radio Is “Totally Underfunded” With Independent Sector Share Dwarfed By RTÉ
Fine Gael TD Brian Brennan challenged RTÉ this week on the apparent disparities in funding in media broadcasting
From TikToks In Bray To US Shows: Florence Road Win Olivia Rodrigo’s Praise
The Bray band’s version of Obsessed caught the pop star’s attention, and a few years on they are opening for her in front of 40,000 fans
East Coast FM Audience Grows As Radio Keeps Wicklow Connected
Oisín McConville Bolsters Coaching Backroom Team With Two New Faces
Down's Kevin McKernan and Monaghan's Dermot McArdle join the Wicklow ticket hoping to build on this year's historic Tailteann Cup success
10:00pm - 1:00am
Relaxing favourites with Traic O'Braonain
Sunny intervals
High: 11°C | Low: 7°C
Sunny intervals
High: 11°C | Low: 7°C
Sunny intervals
High: 10°C | Low: 6°C
Sunny intervals
High: 9°C | Low: 4°C
Sunny intervals
High: 9°C | Low: 4°C