McCann may refer to:

"I'd Like to Teach the World to Sing (In Perfect Harmony)" is a pop song that originated as "True Love and Apple Pie", by British hit songwriters Roger Cook and Roger Greenaway, and sung by Susan Shirley.
An advertising agency, often referred to as a creative agency or an ad agency, is a business dedicated to creating, planning, and handling advertising and sometimes other forms of promotion and marketing for its clients. An ad agency is generally independent of the client; it may be an internal department or agency that provides an outside point of view to the effort of selling the client's products or services, or an outside firm. An agency can also handle overall marketing and branding strategies promotions for its clients, which may include sales as well.
UM or um may refer to:
The Interpublic Group of Companies, Inc. (IPG) is an American publicly traded advertising company. The company consists of five major networks: FCB, IPG Mediabrands, McCann Worldgroup, MullenLowe Group, and Marketing Specialists, as well as several independent specialty agencies in the areas of public relations, sports marketing, talent representation, and healthcare. It is one of the "Big Four" agency companies, alongside WPP, Publicis and Omnicom. Phillippe Krakowsky became the company's CEO on January 1, 2021.
The Cannes Lions International Festival of Creativity is a global event for those working in creative communications, advertising, and related fields. It is considered the largest gathering of the advertising and creative communications industry.
TM Advertising was an independent brand creative agency in Dallas, Texas. It closed down in 2019 after 85 years in business.
mcgarrybowen is an advertising agency founded in 2002 by John McGarry, former president of Young & Rubicam, Stewart Owen, former chief strategic officer of Young & Rubicam, and Gordon Bowen, a former executive creative director at Ogilvy & Mather and Young & Rubicam and who together until 2008 held roughly 90% of the company. mcgarrybowen was acquired for an undisclosed amount by Dentsu in 2008. It currently has offices in New York, Chicago, San Francisco, London, Paris, Amsterdam, Mexico City, Bangalore, Shanghai, Hong Kong, and Düsseldorf.
Mithun was an advertising and marketing firm, founded in 1933 by Ralph Campbell and Ray Mithun. It was part of Interpublic Group of Communication Companies. The core business was consumer advertising through radio, TV, print, digital, mobile and out-of-home. The company was based in Minneapolis, Minnesota. On January 27, 2016, Mithun ended its 83-year history through a restructuring that consolidated Mithun, Compass Point Media and McCann Worldgroup’s Minneapolis-based General Mills account team into newly formed McCann Minneapolis.

Mary Wells Lawrence is an American retired advertising executive. She was the founding president of Wells, Rich, Greene, an advertising agency known for its creative work. She was the first female CEO of a company listed on the New York Stock Exchange. Wells Lawrence was awarded the Lion of St. Mark for her lifetime achievements at the 2020 Cannes Lions Festival of Creativity.
Madeleine Beth McCann is a British missing person who, at the age of 3, disappeared from her bed in a holiday apartment in Praia da Luz, Lagos, Portugal, on the evening of 3 May 2007. The Daily Telegraph described her disappearance as "the most heavily reported missing-person case in modern history". Madeleine's whereabouts remain unknown, although German prosecutors believe she is dead.
SMART is an independent Australian advertising agency with offices in Sydney, Melbourne and Brisbane. SMART was launched in 2000 as a boutique creative agency. Over the next decade the business grew to become Australia's largest independent agency and was described by AdNews Magazine as "one of the best known independent advertising agency success stories in the country". SMART's founders created the most awarded campaign in the history of the Cannes Lions International Festival of Creativity, Dumb Ways to Die.
“Where do you want to go today?” was the title of Microsoft’s second global image advertising campaign. The broadcast, print and outdoor advertising campaign was launched in November 1994 through the advertising agency Wieden+Kennedy. The campaign had Microsoft spending $100 million through July 1995, of which $25 million would be spent during the holiday shopping season ending in December 1994.

Allen Steven Kay was an American advertising executive and businessman. He created a television advertisement for Xerox that aired during the 1976 Super Bowl, featuring a monk called Dominic Kay is also known for his "See Something Say Something" advertising campaign for the New York Metropolitan Transportation Authority. Kay co-founded Korey Kay & Partners advertising in 1982 and served as its Chairman and CEO for 32 years. Kay was active in several advertising industry associations.
MRM is a global direct and digital marketing agency. MRM stands for McCann Relationship Marketing. It is part of McCann Worldgroup within The Interpublic Group of Companies (IPG), one of the Big Four marketing firms.
Universal McCann (UM) is a global media and advertising agency. UM is a member of Interpublic Group, operating under the IPG Mediabrands branch. Some of its regional offices are known as Universal Media rather than Universal McCann but are still generally all known as UM.
The Life, also known as We Are ODST, is a television and cinema advertisement launched in 2009 by Microsoft to promote the first-person shooter Halo 3: ODST in the United States. The 150-second piece follows a young soldier through enlistment, training, and battle as an Orbital Drop Shock Trooper (ODST), analogous to a paratrooper that drops from space to a battlefield. The Life was created by advertising agency T.A.G., an offshoot of McCann Erickson. Production of the commercial itself was handled by production company Morton/Jankel/Zander (MJZ). It was directed by Rupert Sanders, and post-production was conducted by Asylum. It was filmed in Hungary, just outside Budapest in a coal mine and abandoned factories to give the sequence an "Eastern Bloc" aesthetic. The commercial and its associated campaign proved hugely successful; on the week of its launch, Halo 3: ODST became the top-selling game for the Xbox 360 worldwide, and over 2.5 million copies were sold within the first few weeks of release. The Life went on to win a number of honours from the advertising and entertainment industries, including two Clio Awards, a London International Advertising Award and several honours from the Cannes Lions International Advertising Festival, the most prestigious awards ceremony in the advertising industry.
McCann, formerly McCann Erickson, is an American global advertising agency network, with offices in 120 countries. McCann is part of McCann Worldgroup, along with several other agencies, including direct digital marketing agency MRM//McCann, experiential marketing agency Momentum Worldwide, healthcare marketing group McCann Health, and public-relations and strategic-communications agency Weber Shandwick.
Harrison King McCann, was the founder of the H. K. McCann Company. H. K. McCann Company was an advertising agency that, as McCann Erickson, grew to become the world's largest with a global network of offices in more than 130 countries, providing advertising campaigns for brands including Standard Oil, Vaseline, Beech-Nut, Del Monte, Nabisco, Coca-Cola, General Motors, Martini, Gillette, L’Oréal, Bacardi, Nestlé, R.J. Reynolds and MasterCard.
Marcio Moreira was a multi-cultural marketing executive who played an influential role in the globalization of advertising. In a 44-year career at McCann Erickson Worldwide, Moreira headed the agency's InterNational Team—referred to by The New York Times as a "daring experiment in the nascent science of worldwide marketing"—customizing global campaigns to address cultural nuances on a country-by-country basis. Moreira has been credited with accelerating the cross-border, or trans-nationalization, of brands.
William Montague Backer or Bill Backer was an American advertising executive. He became an industry legend for creating the Coca-Cola slogans "Things go better with Coke" and "the real thing", and the Miller Lite slogans "everything you ever wanted in a beer, and less" and "Miller Time". In 1971, Backer created the Coca-Cola campaign and accompanying song "I'd Like to Teach the World to Sing ."