Marga may refer to:

• Marga (Batak), a family name in Batak society
• Marga Barbu (1929–2009), Romanian actress
• Marga Boodts (1895–1976), woman claimed to be Grand Duchess Olga Nikolaevna of Russia
• Marga Gomez (born 1960), Puerto Rican/Cuban-American comedian, playwright, and humorist
• Marga Hoek (born 1965), Dutch businesswoman
• Marga Klompé (1912–1986), Dutch politician
• Marga López (1924–2005), Argentine-Mexican actress
• Marga Minco (1920–2023), Dutch journalist and writer
• Marga Ortigas, Manila-based correspondent for Al Jazeera English
• Marga Petersen (1919–2002), German athlete who competed mainly in the sprints
• Marga Richter (born 1926), American composer
• Marga Scheide (born 1954), Dutch former model and a singer
• Marga Schiml (born 1945), German opera singer
• Marga T (born 1943), Indonesian writer
• Marga van Praag (born 1946), Dutch journalist and television presenter

• Margaret "Marga" M. Bartolome, a character from Philippine drama series Kadenang Ginto

• Marga, Estonia, a village in Estonia
• Marga (East Syrian diocese), a mediaeval diocese of the Church of the East
• Marga, Caraș-Severin (Hungarian: Márga), a commune in Caraș-Severin County, southwestern Romania
• Marga, Tabanan, a subdistrict (Kecamatan) of Tabanan Regency, Bali, Indonesia
• Marga Marga Province, one of the eight provinces in the central Chilean region of Valparaíso
• Marga (river), a tributary of the river Bistra in Caraș-Severin County, southwestern Romania
• Marga, a village in Godeanu Commune, Mehedinți County, western Romania
• Marga, now called Yemişli, Uludere in Turkey

• Ananda Marga, socio-spiritual organization founded in Jamalpur, Bihar, India
• Marga (Sanskrit mārga; Pali magga, "path") in Buddhism refers to the path to enlightenment
• Marga in Hinduism refers to a way of accomplishing something such as yoga or sādhanā

• Marg (disambiguation)
• Margaretha