Jan Zieliński

Jan Zieliński (born 16 November 1996) is a tennis player from Poland. Zieliński has a career-high singles ranking of No. 769, and a career-high doubles ranking of No. 7.

Playing for the Poland Davis Cup team, Zieliński has a win–loss record of 3–3.

Doubles

 * 🇦🇺 Australian Open, Melbourne (23 Jan 2023) – 🇦🇺 Rinky Hijikata / 🇦🇺 Jason Kubler def. Hugo Nys / 🇵🇱 Jan Zieliński, 6–4, 7–6(7–4).
 * 🇺🇸 Phoenix (13 Mar 2023) – 🇺🇸 Nathaniel Lammons / 🇺🇸 Jackson Withrow def. Hugo Nys / 🇵🇱 Jan Zieliński, 6–7(1–7), 6–4, [10–8].
 * 🇮🇹 Rome (15 May 2023) – Hugo Nys / 🇵🇱 Jan Zieliński def.  Robin Haase /  Botic van de Zandschulp, 7–5, 6–1.
 * Basel (23 Oct 2023) – 🇲🇽 Santiago González / 🇫🇷 Édouard Roger-Vasselin def. Hugo Nys / 🇵🇱 Jan Zieliński, 6–7(8–10), 7–6(7–3), [10–1].
 * 🇫🇷 Metz (6 Nov 2023) – Hugo Nys / 🇵🇱 Jan Zieliński def. 🇩🇪 Hendrik Jebens / 🇩🇪 Constantin Frantzen, 6–4, 6–4.

Grand Slam

 * Singles
 * Doubles