Tytus Adam Działyński (1796–1861, son of Ksawery, father to Jan Kanty) was a Polish political activist and protector of arts and a Prussian politician.
He was a publisher of historical sources important for the Polish history, founder of Kórnik Library (Biblioteka Kórnicka), co-founder of Poznań Industrial Society (Towarzystwo Przemysłowe w Poznaniu), the Poznań Society of Friends of Arts and Sciences (Poznańskie Towarzystwo Przyjaciół Nauk) and the president of the latter since 1858. He was also a participant of the November Uprising (1830/31) and Spring of Nations (1848). He was also a member of provincial parliament of the Grand Duchy of Poznan (1841-1846) and of the Prussian House of Representatives (1851-1853, 1858-1861).
- The Lithianian Statute (Statut litewski, 1841)
- Źródłopisma do dziejów unii Korony Polskiej i Wielkiego Księstwa Litewskiego (1856–61) Sources to the history of union of the Crown of Poland and the Grand Duchy of Lithuania
- Acta Tomiciana (vol. 1-8, 1852–60).
- Witold Jakóbczyk, Przetrwać na Wartą 1815-1914, Dzieje narodu i państwa polskiego, vol. III-55, Krajowa Agencja Wydawnicza, Warszawa 1989