The 2017–18 BC Prienai season is the 23rd season in the existence of the club, which was known as Vytautas Prienai–Birštonas for sponsorship reasons (which was their last year under that name). The team played in the Lithuanian Basketball League (LKL) but also briefly participated in the Baltic Basketball League (BBL) and in the qualifying round of Basketball Champions League (BCL). The season was highlighted with both on-court and financial struggles, dating as far back as 2016, and several roster changes.