Daniel Kajzer (born 23 February 1992) is a Polish professional footballer who plays as a goalkeeper for I liga club Warta Poznań.
On 12 June 2017, after a successful trial period, Kajzer signed a two-year contract with Bulgarian club Botev Plovdiv.
[citation needed] After spending the 2019–20 season as a back-up with Śląsk Wrocław, making only one cup appearance, on 28 July 2020 he joined Arka Gdynia.
[7] He made a single Bulgarian Cup appearance that season, keeping a clean sheet in a 0–3 first round win over Strumska Slava on 8 November 2023.
[10] On 9 February 2025, Kajzer joined Polish second-tier club Warta Poznań on a deal until June 2026, with an option to extend for another year.