Accuracy in Media (AIM) is an American non-profit conservative news media watchdog founded in 1969 by economist Reed Irvine. AIM supported the Vietnam War and blamed media bias for the U.S. loss in the war. During the Reagan administration, AIM criticized reporting about the El Mozote massacre in El Salvador. During the Clinton administration, AIM pushed Vince Foster conspiracy theories. During the George W. Bush administration, AIM accused the media of bias against the Iraq War, defended the Bush administration's use of torture, and campaigned to stop the United States from signing the United Nations Convention on the Law of the Sea (UNCLOS). It described 2008 presidential candidate Barack Obama as "the most radical candidate ever to stand at the precipice of acquiring his party's presidential nomination" and said it was "apparent that he is a member of an international socialist movement". It also criticized the media's response to the COVID-19 pandemic.

AIM, which opposes the scientific consensus on climate change, has criticized media reporting on climate change. The organization gives out the Reed Irvine Accuracy in Media Award. Past recipients include Marc Morano (who runs the climate change denial website ClimateDepot), Tucker Carlson, and Jim Hoft (founder of The Gateway Pundit).

Accuracy in Media (AIM) was founded in 1969 by Reed Irvine, an economist at the Federal Reserve Bank. In order to reduce what they perceive as bias in media reporting, AIM works to "investigate complaints, take proven cases to top media officials, seek corrections and mobilize public pressure to bring about remedial action."

Irvine and then-executive secretary Abraham Kalish sent letters to the editors of many newspapers and magazines they identified as skewed, calling out slanted news stories. If the newspaper rejected the letter, AIM bought space and printed the letter in that newspaper. Beginning in 1975, Accuracy in Media began purchasing participating interests in major media companies, allowing Irvine to attend annual shareholder meetings. He used these opportunities to express the AIM's concerns to the various companies' owners. Reed's son, Don, chairs the organization. Don Irvine referred to his father as a "die-hard anti-communist." In 1990, Irvine was mentioned by Walter Goodman of The New York Times for "his efforts to put pressure on networks and advertisers to crack down on reporters to whom he takes exception do not mark him as an enthusiast of unfettered expression."

Following Irvine's death in 2004, an editorial in the Columbia Journalism Review said that "[Irvine] was stone blind to his own prejudices, and he could be scurrilous and unfair in his attacks, but he knew something about our major media" and credited Irvine in part for the rise of the popular conservative view that the American media is imbued with a liberal bias. According to The Washington Post, while Irvine worked at the Federal Reserve, co-workers he would eat lunch with often "complained that conservative points of view were not adequately reported in the media." In his way of changing this, Irvine formed AIM. It is also said that Reed Irvine was urged to start the organization after the 1968 Democratic National Convention because he thought the mainstream media networks were overly sympathetic to antiwar protestors.

Membership to AIM grew significantly when Reagan was president, topping 40,000 members with a budget of $1.5 million. As the organization grew, Reed Irvine was also a shareholder in media companies. During a shareholder meeting for TBS in 1989, Irvine said at the meeting that conservative leaning organizations had a difficult time getting their views presented on TBS and this was not the case for more liberal leaning groups. As of April 2020,^[update] the current president of AIM is Adam Guillette.

AIM's income in 1971 was $5,000. By the early 1980s, it was $1.5 million. In 2009, AIM received $500,000 in contributions. At least eight separate oil companies are known to have been contributors in the early 80s. Only three donors are given by name: the Allied Educational Foundation (founded and chaired by George Barasch), Shelby Cullom Davis, and billionaire Richard Mellon Scaife. Scaife gave $2.2 million to Accuracy in Media between 1977 and 1998. AIM has been funded by Exxon.

AIM was critical of media reports about the harmful effects of Agent Orange, a military herbicide with adverse health effects for humans, in the Vietnam War. AIM blamed the U.S. media for the loss in the Vietnam War. AIM criticized the 1983 PBS documentary series Vietnam: A Television History as being pro-communist. According to The New York Times, one of AIM's greatest accomplishments was the documentary, Television's Vietnam: The Real Story in response to the PBS series.