Lajos is a Hungarian given name, and may refer to:
In Hungarian politics:
- Lajos Aulich, second Minister of War of Hungary
- Lajos Batthyány, first Prime Minister of Hungary
- Lajos Dinnyés, Prime Minister of Hungary from 1947 to 1948
- Lajos Kossuth, Hungarian lawyer, politician and Regent of Hungary
In football:
- Lajos Baróti, coach of the Hungary national football team
- Lajos Czeizler, Hungarian football coach
- Lajos Détári, retired Hungarian football player
- Lajos Sătmăreanu, former Romanian football player
- Lajos Tichy, Hungarian footballer
In art:
- Lajos Csordák, Hungarian/Slovak painter
- Lajos Markos, Hungarian American painter
- Lajos Koltai, Hungarian cinematographer and film director
In Hungarian literature:
- Lajos Biró, Hungarian novelist, playwright, and screenwriter
- Lajos Egri, author of The Art of Dramatic Writing
- Lajos Hevesi, Jewish Hungarian journalist and author
In chess:
- Lajos Portisch, Hungarian chess player
- Lajos Steiner, Hungarian chess player
In other fields:
- Lajos Bárdos, Hungarian composer and professor of music at the Franz Liszt Academy of Music
- Lajos Werkner, Hungarian 2x Olympic champion saber fencer
- Lajos Kossuth Square, Metro station in Budapest
- Zoltán Lajos Bay, Hungarian physicist