अरुण जेटली(जन्म: 28 दिसंबर 1952 नई दिल्ली) भारतीय जनता पार्टी के प्रमुख नेता हैं। वे वर्तमान समय में राज्य सभा में नेता प्रतिपक्ष हैं। वे राजग(राष्ट्रीय जनतांत्रिक गठबंधन) के शासन में केंद्रीय न्याय मन्त्री के साथ-साथ कई बडे पद पर आसीन थे।
Arun Jaitley (born 28 December 1952) is a prominent Indian politician and a member of the Bharatiya Janata Party (BJP), which is currently the principal Opposition party in India. He is the Leader of Opposition in the Rajya Sabha and has previously held the portfolios as the Union cabinet Minister for Commerce and Industry, Law and Justice in the National Democratic Alliance government (1998-2004).
He was born to Kishen and Ratan Prabha Jaitley. Born to a lawyer father, he did his schooling at St. Xavier's School, New Delhi from 1969-70. He graduated in Commerce from Shri Ram College of Commerce, New Delhi in 1973. He passed his Law degree from the Faculty of Law, University of Delhi, in 1977.
During his career as a student, he was the recipient of several distinctions for his outstanding performances both in academics and extra curricular activities. He was President of the Students Union of Delhi University in 1974.
Jaitley was an Akhil Bharatiya Vidyarthi Parishad (ABVP) student leader in the Delhi University campus in the seventies and rose to be President of the University Students' Union in 1974. During the period of proclamation of Internal Emergency (1975–77) when civil liberties were suspended, he was under preventive detention for a period of 19 months. He was a prominent leader of a movement against corruption launched in the year 1973 by Raj Narain and Jai Prakash Narayan. He was the Convenor of the National Committee for Students and Youth organisation appointed by Jai Prakash Narayan.
He was also active in civil rights movement and helped found PUCL Bulletin along with Satish Jha and Smitu Kothari. After being released from jail he joined Jan Sangh.
Arun Jaitley had been the member of the ABVP, the student wing of the Rashtriya Swayamsevak Sangh (RSS) during his student days. He became the spokesman of the BJP during the period preceding the 1999 general election. After the Vajpayee Government came to power under the umbrella of the National Democratic Alliance, he was appointed Minister of State for Information and Broadcasting (Independent Charge) on October 13, 1999. He was also appointed Minister of State for Disinvestment (Independent Charge), a new Ministry created for the first time to give effect to the policy of disinvestments under the World Trade Organisation (WTO) regime.
He took over the additional charge of the Ministry of Law, Justice and Company Affairs on July 23, 2000 following the resignation of Ram Jethmalani as the Union Cabinet Minister of Law, Justice and Company Affairs. He was elevated as a Cabinet Minister in November 2000 and was made simultaneously the Minister of Law, Justice and Company Affairs and Shipping. He was the first Minister of Shipping following the bifurcation of the Ministry of Surface Transport. He demitted the office of the Minister for Shipping with effect from September 1, 2001 and as Union Minister of Law, Justice and Company Affairs on July 1, 2002 to join as a Secretary General, BJP and its national spokesman. He worked in this capacity till January 2003. He rejoined the Union Cabinet as the Minister of Commerce & Industry and Law & Justice on 29 January 2003. With the defeat of the National Democratic Alliance in May 2004, Jaitley returned to serving the BJP as a General Secretary, and back to his legal career. He is currently a Rajya Sabha member from Gujarat (as of March 2006) and has never contested any election. He was chosen as the Leader of the opposition in Rajya Sabha on June 3, 2009 by L.K. Advani. On June 16, 2009 he resigned from the post of General Secretary of BJP as per his party's One Man One Post principle. In his capacity as the leader of opposition in Rajya Sabha- he has been credited for his excellent oratory which is matched equally by his intense research into the topic and his ability to succinctly convey the message without being shrill.