January 4 – President Obama signs 35 acts into law including the Government Performance and Results Modernization Act of 2010 and the FDA Food Safety Modernization Act.[4]
February 2 – President Obama signs the instrument of ratification for New START, a nuclear arms reduction treaty between the United States and the Russian Federation.[13]
February 27 – The 2011 Governors' Dinner is hosted by President Obama in the State Dining Room of the White House.[29] The President makes an appearance in a pre-recorded clip shown during the 83rd Academy Awards ceremony.[29]
March 10 – The President and First Lady host the first Conference on Bullying Prevention at the White House.[36]
March 18 – President Obama orders military air strikes against Muammar Gaddafi's forces in Libya in his address to the nation from the White House. Shortly afterward, the President travels to Rio de Janeiro, Brazil to meet with President Dilma Rousseff.[37][38]
March 26 – President Obama addressed the nation from the White House, providing an update on the current state of the military intervention in Libya.[40]
June 22 – President Obama in his address to the nation from the White House announces his plan to withdraw 33,000 U.S. troops from Afghanistan by the summer of 2012.[62]
July 10–14 – The President holds a series of daily meetings with Congressional leaders at the White House in an attempt to reach an agreement on raising the debt ceiling.[63]
July 25 – The President delivers a prime time television address about the debt ceiling debate.[65]
August 2 – The President signs into law the Budget Control Act of 2011, (Pub. L.112–25 (text)(PDF), S.365, 125Stat.240, enacted August 2, 2011), to raise the federal debt ceiling, avoid default, and create a bipartisan "super committee" to deliberate on debt reductions.[66]
August 15–17 – President Obama embarks on a three-day, five-city bus tour to host town hall meetings to discuss the economy and jobs. On August 15, the President stopped in Cannon Falls, Minnesota, and Decorah, Iowa. The President is scheduled to make stops in Peosta, Iowa, on August 16 and in Atkinson, Illinois, and Alpha, Illinois, on August 17.[68]
August 18 – President Obama calls for Syrian President Bashar al-Assad to step down and issues an executive order prohibiting certain financial transactions with Syria.[69]
September 12 – The President delivers a speech in the White House Rose Garden to promote his American Jobs Act.[73]
September 16 – President Obama signs the America Invents Act, (H.R.1249), a major overhaul of the U.S. patent system, into law.[74]
September 19 – The President releases his debt reduction plan and the Buffett Rule.[75]
October 6 – The President, speaking at a press conference from the White House, urges the Senate to pass his American Jobs Act.[76]
October 11 – The President asks Harry Reid to hold votes on separate parts of his American Jobs Act after it fails to secure a filibuster-proof supermajority in the Senate.[77]
October 13 – The President and First Lady host their fifth state dinner at the White House to honor South Korean President Lee Myung-bak.[78]
October 14 – In a letter to Congress, President Obama announces that he has authorized the deployment of "about 100" U.S. troops to Africa "to provide assistance to regional forces that are working toward the removal of Joseph Kony" (leader of the Lord's Resistance Army).[79]
November 18 – While visiting Bali, Indonesia, President Obama announces Hillary Clinton's plan to visit Burma, the first by a Secretary of State in more than 50 years.[88]
December 5 − President Obama meets at the White House with college presidents on college affordability.
December 7 − The President holds a bilateral meeting with Prime Minister Stephen Harper of Canada.
December 12 – President Obama meets with Prime Minister Nouri al-Maliki of Iraq at the White House; later, the two participate in a wreath-laying ceremony at Arlington National Cemetery.[94]
December 14 – The President and First Lady visit Fort Bragg to mark the end of the Iraq War.[95]