Václav Sejk (born 18 May 2002) is a Czech professional footballer who plays as a forward for Eredivisie club Heerenveen on loan from Sparta Prague.
Club career Sejk started his career with local sides TJ Spartak Boletice n.L. and FK Junior Děčín before joining Teplice in 2015. After moving to Sparta Prague in 2017, he progressed through the youth ranks and 'B' team, before being loaned back to Teplice in 2022. He started well for Teplice, and was noted for his goalscoring ability.
Since 2024, Sejk has been sent on a succession of loans from Sparta. First, in January 2024 to Eerste Divisie club Roda JC until the end of the season. In July 2024, he was sent on a season-long loan again, this time joining Ekstraklasa club Zagłębie Lubin.
On 9 January 2025, he joined Primeira Liga team Famalicão on a half-year loan deal.
On 26 July 2025, Sejk joined Eredivisie club Heerenveen on a loan deal with option to buy.
