Manuel "Mar" Araneta Roxas II (born May 13, 1957) is a Senator (Philippine Senator) of the Philippines. He is the son of former Senator Gerry Roxas (Gerardo Roxas), and the grandson of former President (President of the Philippines) Manuel Roxas.

A graduate of the Wharton School of Economics (Wharton School), Roxas worked as an investment banker, mobilizing venture capital funds for small and medium enterprises. He served as the Representative of the 1st District of Capiz (Legislative districts of Capiz#1st District) from 1993 to 2000. His stint as Congressman was cut short after he was appointed by President Joseph Estrada as Secretary of Trade and Industry (Department of Trade and Industry (Philippines)). He resigned from the position at the height of the EDSA Revolution of 2001 and was later re-appointed by President Gloria Macapagal-Arroyo in her new Cabinet. He resigned again to run for a Senate (Senate of the Philippines) seat in the 2004 Philippine election (Philippine general election, 2004). He was elected as Senator with 19 million votes and the highest ever garnered by a national candidate in any Philippine election and co-author of e-vat law

Initially one of the leading contenders in the Philippine presidential election, 2010, he has slid down to becoming a vice-presidential candidate to make way for Noynoy Aquino. Though Roxass supporters assert that this demonstrated his selflessness, his critics claim that he had done so as a way to secure a graceful exit as he continued to perform poorly in the surveys. His campaign for vice president took off after his marriage with broadcaster Korina Sanchez.

He was defeated by Makati City Mayor Jejomar Binay of the Partido Demokratiko Pilipino-Lakas ng Bayan (PDP-Laban) by the narrowest margin in the history of the Fifth Republic. Roxas is considering of filing an electoral protest (Electoral fraud) to the Presidential Electoral Tribunal (PET; the Supreme Court (Supreme Court of the Philippines)).