OAA may refer to:

Madhuri Dixit (born on 15 May 1967) is an Indian film actress who has appeared in Hindi films. Often cited by the media as one of the best actresses in Bollywood, Dixit made her film debut in Abodh (1984) and received wider public recognition with Tezaab (1988). She went on to establish herself as one of Hindi cinema's leading actresses, acknowledged for several of her performances, her beauty, and her accomplished dancing.

Some of her proceeding films include such box-office hits as Dil (1990), Saajan (1991), Beta (1992), Hum Aapke Hain Koun..! (1994) and Raja (1995). After a relatively low phase, she reinvented herself with the romance Dil To Pagal Hai (1997) and subsequently received critical acclaim for her work in films like Mrityudand (1997), Pukar (2000), Lajja (2001) and Devdas (2002). In 2002, she retired from films in order to raise her children and made a comeback with the musical Aaja Nachle in 2007.

Dixit has won five Filmfare Awards, four for Best Actress and one for Best Supporting Actress. She holds the record for the highest number of Best Actress nominations (13) at Filmfare. In 2008, she was awarded the Padma Shri, India's fourth-highest civilian award by the Government of India.

Thomas Ewing, Sr. (December 28, 1789 – October 26, 1871) was a National Republican and Whig politician from Ohio. He served in the U.S. Senate as well as serving as the Secretary of the Treasury and the first Secretary of the Interior.

Born in West Liberty, Ohio County, Virginia (now West Virginia), was the son of Revolutionary War veteran George Ewing. After studying at Ohio University and reading law under Philemon Beecher, Ewing commenced the practice of law in Lancaster, Ohio, in 1816.

As a colorful country lawyer, he was elected to the U.S. Senate in 1830 as a Whig and served a single term. He was unsuccessful in seeking a second term in 1836. Ewing served as Secretary of the Treasury in 1841, serving under Presidents William Henry Harrison and John Tyler. He resigned on September 11, 1841, along with the entire cabinet (except Secretary of State Daniel Webster), in protest of Tyler's veto of the third Bank of the United States^{[disambiguation needed ]}.

Ewing was later appointed to serve as the first Secretary of the Interior by President Zachary Taylor. Ewing served in the position from March 8, 1849–July 22, 1850 under Taylor and Millard Fillmore. As first secretary, he consolidated bureaus from various Departments, such as the Land Office from the Treasury Department and the Indian Bureau from the War Department. The bureaus were being kicked out of their offices as unwanted tenants in their former departments. However, the Interior Department had no office space, so Ewing rented space. Later, the Patent Office building, with a new east wing, provided permanent space in 1852. Ewing initiated the Interior Department's culture of corruption by wholesale replacement of officials with political patronage. Newspapers called him "Butcher Ewing" for his efforts.