Jamaat-e-Islami Hind (Urdu: جماعتِ اسلامی ہند, abbreviated as JIH) is an Islamic organisation in India, founded as an offshoot of the Jamaat-e-Islami, which split into separate independent organisations in India, Pakistan, Bangladesh following the Partition of India in 1947.

Islam is the ideology of the Jamaat-e-Islami Hind. Its structure is based on its belief on the three-fold concept of the Oneness and sovereignty of God (Monotheism), the Concept of Prophet-hood and the Concept of Life after Death. From these fundamentals of belief follow the concepts of unity of all mankind, the purposefulness of man's life, and the universality of the way of life taught by Muhammad. JIH specifies its guiding principle as "Iqaamat-e-Deen" ("Establishment of the Islamic way in all aspects of life") in its constitution. Its guiding principle is that Islam is a complete way of life (rather than simply a set of worship practices). It provides "a practical doctrine and programme that can take the place of the failed man-made creeds of the 20th century".

While a relatively small party, with around 12,000 members and 500,000 sympathisers among India's 130 million Muslims, it follows a policy of promoting education, social service, and ecumenical outreach to the community and has involved itself in various humanitarian and relief efforts across many parts of India.

Jamaat-e-Islami Hind was officially formed in April 1948, at a meeting in Allahabad, Uttar Pradesh. The Government of India twice banned the organisation though both decisions were revoked by rulings from the Supreme Court of India. During the mid-1980s, it allowed its members to vote in elections in India. By 2002 it was described to be campaigning against advances by Hindu nationalists. On 18 April 2011, it facilitated the launch of a national political party Welfare Party of India, under a leadership that included top functionaries of the organisation and members from the wider Muslim community and outside, including a Christian priest.

Jamaat-e-Islami as formed on 26 August 1941 at Lahore under the leadership of Sayyid Abul A'la Maududi. After the Partition members of the organisation remaining in what became the Republic of India, re-organised themselves to form an independent party, having its own Constitution and separate leadership and organisational structure from Jamaat-e-Islami, Pakistan. Although India was a Hindu-majority country, and beset by at times violent Hindu-Muslim sectarianism, Maududi believed that there was "at least a 60 per cent chance for Islam’s success" in India—Islam as a complete way of life, devoid of nationalism, socialism, liberalism or any other non-Islamic ideologies.

The Indian Jamaat-e-Islami came into being in April 1948 at Allahabad and was officially called "Jamaat-e-Islami Hind". 240 members attended the first meeting and elected Maulana Abul Lais Nadvi as their Amir (leader), and established their headquarters at Malihabad, Lucknow, U.P. Later, the headquarters was shifted to Rampur in 1949 and then to New Delhi in 1960.

Jamaat-e-Islami Hind then underwent a process of reorganisation, reframing its constitution and written policy. The new constitution came into effect on 13 April 1956. The organisation held an All-India Meet at Rampur (U.P) in 1951 followed by meetings at Hyderabad (1952) Delhi (1960), Hyderabad (1967), Delhi (1974), Hyderabad (1981), Hyderabad (1997) and Delhi (2002). It has also held regional conferences on various occasions in different parts of the country. The state chapters of the organisation also hold separate conferences at regular intervals.

The organisation was banned twice by the Government of India during its seven decades of existence, the first temporarily during the Emergency of 1975–1977 and then in 1992 under the Unlawful Activities (Prevention) Act. While the first was revoked after the Emergency was lifted, the second was reversed by the Supreme Court of India on the grounds that the allegations of unlawful activities and questioning of India's sovereignty were not substantiated with concrete legal evidence. The affidavits provided by the government were based on intelligence reports without disclosing their sources, preventing Jamaat-e-Islami Hind from effectively rebutting the claims.