The men's long jump at the 2017 World Championships in Athletics was held at the Olympic Stadium on 4–5 August.

[1] In the final Jarrion Lawson took the lead with 8.37 metres on the fourth jump of the competition.

[3] The standard to qualify automatically for entry was 8.15 metres.

[4] The event schedule, in local time (UTC+1), was as follows:[5] The qualification round took place on 4 August, in two groups, both starting at 19:30.

Athletes attaining a mark of at least 8.05 metres ( Q ) or at least the 12 best performers ( q ) qualified for the final.