| Wojciech Trąmpczyński | |
| Office: | 1st Marshal of the Sejm |
| President: | Józef Piłsudski (Chief of State) |
| Primeminister: | Ignacy Jan Paderewski Leopold Skulski Władysław Grabski Wincenty Witos Antoni Ponikowski Artur Śliwiński Julian Nowak |
| Term Start: | 14 February 1919 |
| Term End: | 27 November 1922 |
| Predecessor: | Office established |
| Successor: | Maciej Rataj |
| Office2: | 1st Marshal of the Senate |
| Term Start2: | 28 November 1922 |
| Term End2: | 26 March 1928 |
| President2: | Józef Piłsudski (Chief of State) Gabriel Narutowicz Maciej Rataj (Acting) Stanisław Wojciechowski Maciej Rataj (Acting) Ignacy Mościcki |
| Predecessor2: | Office established |
| Successor2: | Julian Szymański |
| Birth Name: | Wojciech Stefan Trąmpczyński |
| Birth Date: | 8 February 1860 |
| Birth Place: | Dębłowo, Province of Posen, Prussia, German Empire |
| Death Place: | Poznań, Poland |
| Nationality: | Polish |
| Party: | Popular National Union |
| Occupation: | Politician, lawyer |
| Spouse: | Antonina Jankowska |
Wojciech Stefan Trąmpczyński (8 February 1860 - 2 March 1953) was a Polish lawyer and National Democratic politician. Voivode of the Poznań Voivodeship in 1919. He served as marshal of the Sejm of Poland from 1919–1922 and Senate of Poland from 1922 to 1928.[1]
Trąmpczyński was born in Dębłowo in the Prussian Province of Posen (present-day Poland). He graduated from the law faculty of the University of Wrocław. He died in 1953 in Poznań.