- Mar 10 William David Porter, Commander (Union Navy), (d. 1864)
- Mar 15 Joseph Jenkins Roberts, American-born Liberian merchant and politician (1st President of Liberia 1848-56), born in Norfolk, Virginia (d. 1876)
- Mar 15 Karl Josef von Hefele, German theologian (d. 1893)
- Mar 19 Fredrik Pacius, German-Finnish composer (Finnish and Estonian national anthems), conductor, and music educator, known as "the Father of Finnish music", born in Hamburg, Germany (d. 1891)
- Mar 24 Joseph Liouville, French mathematician (discover of transcendental numbers), born in Saint-Omer, France (d. 1882)
- Mar 27 Georges Eugene, Baron Haussmann, French administrator and architect, born in Paris (d. 1891)
- Mar 31 Edward FitzGerald, British poet, writer, and translator (Rubaiyat of Omar Khayyam), born in Bredfield, Sussex, England (d. 1883)
- Mar 31 Nikolai Gogol [Nikolay], Ukrainian-born Russian novelist, humorist, and dramatist (Dead Souls, The Inspector-General), born in Sorochintsy, Poltava Governorate, Russian Empire (d. 1852)
- Mar 31 Otto Jonas Lindblad, Swedish composer (Kungssången - Royal Anthem), born in Karlstorp, Sweden (d. 1864)