After leaving the NHL in 2003, Smyth had spells in Finland's SM-liiga with Kärpät and in the American Hockey League with the Manchester Monarchs and the Hartford Wolf Pack before joining German team Hamburg Freezers of the DEL in 2006.

On April 10, 2009, Smyth left the DEL as a free agent and signed with EBEL team, KHL Medveščak Zagreb, from Croatia.

In the playoffs, he helped the team to an upset victory over Graz 99ers before falling to eventual champions EC Red Bull Salzburg to post 4 points in 11 games.

Unsigned with the KHL the following season, Smyth joined teammate Richard Seeley and signed in the British Elite Ice Hockey League, with the Belfast Giants on October 6, 2010.

[2] After six years abroad in Europe, on August 14, 2012, Smyth returned to North America and was signed by head coach and former teammate Derek Armstrong to a one-year contract with the newly established Denver Cutthroats of the Central Hockey League.