Lajos (Hungarian pronunciation: [ˈlɒjoʃ]) is a Hungarian masculine given name, cognate to the English Louis. People named Lajos include:

Hungarian monarchs:

• Lajos I, 1326-1382 (ruled 1342-1382)
• Lajos II, 1506-1526 (ruled 1516-1526)

In Hungarian politics:

• Lajos Aulich, second Minister of War of Hungary
• Lajos Batthyány, first Prime Minister of Hungary
• Count Lajos Batthyány de Németújvár, county head of Győr and Governor of Fiume
• 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, Hungarian football player
• Lajos Sătmăreanu, Romanian football player
• Lajos Tichy, Hungarian footballer

In art:

• Lajos Csordák, Hungarian/Slovak painter
• Lajos Lázár, Hungarian film director
• Lajos Markos, Hungarian American painter
• Lajos Koltai, Hungarian cinematographer and film director

In Hungarian literature:

• Lajos Bíró, 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 Pósa, Hungarian mathematician
• Lajos Rovátkay (1933–2026), Hungarian-born German harpsichordist and musicologist
• Lajos Werkner (1883–1943), Hungarian 2x Olympic champion saber fencer
• Zoltán Lajos Bay, Hungarian physicist

• Kossuth Lajos tér, a Metro station in Budapest