The men's C-1 1000 metres competition at the 2018 ICF Canoe Sprint World Championships in Montemor-o-Velho took place at the Centro de Alto Rendimento de Montemor-o-Velho.

[1] The schedule was as follows:[2] All times are Western European Summer Time (UTC+1) Heat winners advanced directly to the A final.

The next six fastest boats in each heat advanced to the semifinals.

[3][4][5] Qualification was as follows: The fastest three boats in each semi advanced to the A final.

[8] Competitors in this final raced for positions 1 to 9, with medals going to the top three.