The 2016–17 Promotion League season is the fifth season of this league. It had previously been called 1. Liga Promotion but underwent a name change before in 2014.[1] The Promotion League is the third highest tier in the Swiss football league system, behind the Super League and the Challenge League.
The season started on 3 August 2016 and finished on 27 May 2017. The league was won by FC Rapperswil-Jona while FC Tuggen were relegated to the 1. Liga.