The 2017–18 Moldovan Cup was the 27th season of the annual Moldovan football cup competition. Sheriff Tiraspol entered as the defending champions after winning the 2016–17 edition. It began with the first preliminary round on 22 July 2017, and concluded with the final on 23 May 2018. The winner qualifies for the first qualifying round of the 2018–19 UEFA Europa League.

The 2016–17 Moldovan Cup was the 26th season of the Moldovan annual football tournament. Zaria Bălți entered as the defending champions after winning the 2015–16 edition. The competition started on 20 August 2016 with the first preliminary round and concluded with the final at the Zimbru Stadium on 25 May 2017. Sheriff won a record 9th title following a 5–0 win over Zaria in the final. As winners, Sheriff would have been assured a place for the 2017–2018 UEFA Europa League first qualifying round; however, since they already qualified for the 2017–2018 UEFA Champions League second qualifying round by winning the title in the Divizia Națională, the Europa League entry went to Zaria Bălți, the highest team in the Divizia Națională table which had not already qualified for European competitions.