Arya Samaj has played a leading role in all social and educational reforms. Some areas where Arya Samaj has contributed are:

• Arya Samaj was actively involved in struggle for independence. Around 80% of freedom fighters were influenced by Arya Samaj. Dadabhai Naoroji, Ram Prasad Bismil, Lala Lajpat Rai , Swami Shardhanand to name a few.
• Reintroducing the ancient Gurukul system of education by establishing  Gurukul Kangri at Haridwar and thereafter several other Gurukuls for Vedic research scholars
• DAV schools & colleges all over India
• Orphanages being run all over the country
• Old Age Homes (Vanprastha Ashram) and homes for destitute
• Promotion of widow remarriage, stopping of Sati Pratha and Polygamy
• Promotion of education for all irrespective of gender or caste
• Movement against Parda (Veil)  system and Dowry
• Movement against child marriage
• Eradication of untouchability
• Movements against superstitions and blind-faiths /beliefs