One Night Only is a series of professional wrestling events held by the American promotion Impact Wrestling in 2018.
Beginning with the 2018 events, the series became exclusive to Global Wrestling Network, rather than be distributed on pay-per-view.
All the 2018 events were co-promoted with independent promotions across North America.
Some of the matches were taped in Shawnee, Oklahoma at IWR's second annual When Worlds Collide show, while others were taped in Windsor, Ontario at BCW's annual Excellence event.
The event included matches taped during Border City Wrestling's annual Excellence event as well as BCW Motown Showdown.