The following links, provided at EWTN, will take you to both the Latin and English texts of the sixteen documents of the Second Vatican Council. The Latin texts are the normative texts of the Council, published in the Acta Apostolicae Sedis, in which the official acts of the Holy See are published.
The texts are listed in the order in which they were promulgated:
1. Sacrosanctum concilium, Constitution On the Sacred Liturgy.
Promulgated by Pope Paul VI on 4 December 1963.
2. Inter Mirifica, Decree On the Means of Social Communication, 1963.
Decreed by the Council and promulgated on December 4, 1963 by Pope Paul VI.
3. Lumen Gentium, Dogmatic Constitution On the Church.
Promulgated by Pope Paul VI on 21 November 1964.
4. Orientalium Ecclesiarum, Decree On the Catholic Churches of the Eastern Rite.
Promulgated by Pope Paul VI on 21 November 1964.
5. Unitatis Redintegratio, Decree On Ecumenism.
Promulgated by Pope Paul VI on 21 November 1964.
6. Christus Dominus, Decree Concerning the Pastoral Office of Bishops in the Church.
Promulgated by Pope Paul VI on 28 October 1965.
7. Perfectae Caritatis, Decree On Renewal of Religious Life.
Promulgated by Pope Paul VI on 28 October 1965.
8. Optatam Totius, Decree On Priestly Training.
Promulgated by Pope Paul VI on 28 October 1965.
9. Gravissimum Educationis, Declaration On Christian Education.
Promulgated by Pope Paul VI on 28 October 1965.
10. Nostra Aetate, Declaration On the Relation of the Church to Non-Christian Religions.
Promulgated by Pope Paul VI on 28 October 1965.
11. Dei Verbum, Dogmatic Constitution On Divine Revelation.
Promulgated by Pope Paul VI on 18 November 1965.
12. Apostolicam Actuositatem, Decree On the Apostolate of the Laity.
Promulgated by Pope Paul VI on 18 November 1965.
13. Dignitatis Humanae, Declaration On Religious Freedom.
Promulgated by Pope Paul VI on 7 December 1965.
14. Ad Gentes, Decree On the Mission Activity of the Church.
Promulgated by Pope Paul VI on 7 December 1965.
15. Presbyterorum Ordinis, Decree On the Ministry and Life of Priests.
Promulgated by Pope Paul VI on 7 December 1965.
16. Gaudium et Spes, Pastoral Constitution On the Church in the Modern World.
Promulgated by Pope Paul VI on 7 December 1965.