Kacper Śpiewak (born 30 May 2000) is a Polish footballer who plays as a forward for Polish side Bruk-Bet Termalica Nieciecza and the Poland national under-21 team. Śpiewak began his senior club career playing for Stal Stalowa Wola, before signing with Nieciecza in 2020, winning the promotion to the Ekstraklasa in his first season.