- A. J. Allmendinger [36]
- A. J. Burnett [47]
- A. J. Ellis [57]
- A. J. Foyt [23]
- A. J. Jenkins [12]
- A. J. McCarron [16]
- A. J. Pierzynski [168]
- A. J. Smith [21]
- A.C. Milan [33]
- A123 Systems [6]
- Aaron Corp [10]
- Aaron Craft [34]
- Aaron Crow [12]
- Aaron Cunningham [7]
- Aaron David Miller [7]
- Aaron Harang [63]
- Aaron Hernandez [42]
- Aaron Murray [18]
- Aaron Rodgers [204]
- Aaron Swartz [5]
- ABC Inc. [21]
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- Abdullah Öcalan [11]
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- Acapulco [6]
- Aches & Pains [28]
- Achilles Tendon [19]
- Acme Brick [8]
- Actors [35]
- Adam Burish [17]
- Adam Dunn [67]
- Adam LaRoche [65]
- Adam Lind [37]
- Adam McQuaid [7]
- Adam Moore [12]
- Adam Oates [37]
- Adam Rosales [37]
- Adam Schefter [10]
- Adam Silver [10]
- Adam Snyder [5]
- Adam Wainwright [39]
- Addison Reed [32]
- Adeiny Hechavarria [13]
- Adjustable Rate Mortgages [23]
- Adolf Hitler [9]
- Adrián Beltré [234]
- Adrian Gonzalez [110]
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- Adrien Broner [24]
- Advertising Industry [6]
- AEG Live [10]
- Aerospace Manufacturers [5]
- AFC Championship Game [81]
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- AFC West [250]
- Afghan Military [7]
- Afghanistan [24]
- Africa [17]
- African National Congress [14]
- Agence France-Presse [5]
- Agnieszka Radwańska [43]
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- Ahmad Bradshaw [28]
- Ai Miyazato [15]
- AIDS & HIV [9]
- Air Bases [36]
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- Akbar Hashemi Rafsanjani [5]
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- Al Horford [250]
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- Aldon Smith [57]
- Alec Baldwin [22]
- Alec Martinez [7]
- Alec Ogletree [15]
- Alejandro De Aza [48]
- Alejandro Falla [7]
- Aleppo [19]
- Ales Hemsky [31]
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- Alex Albright [12]
- Alex Avila [46]
- Alex Burnett [8]
- Alex Cobb [17]
- Alex Ferguson [5]
- Alex Galchenyuk [29]
- Alex Goligoski [19]
- Alex Meyer [16]
- Alex Morgan [6]
- Alex Okafor [10]
- Alex Oriakhi [34]
- Alex Poythress [21]
- Alex Rodriguez [19]
- Alex Sanabia [32]
- Alex Van Pelt [6]
- Alexander Edler [36]
- Alexander Litvinenko [7]
- Alexander McQueen [7]
- Alexander Norén [6]
- Alexander Ovechkin [85]
- Alexander Payne [6]
- Alexander Steen [41]
- Alexandr Dolgopolov [7]
- Alexandra Raisman [7]
- Alexandre Burrows [40]
- Alexei Emelin [10]
- Alexei Ramírez [33]
- Alexi Amarista [10]
- Alexi Casilla [13]
- Alexi Ogando [96]
- Alfonso Soriano [70]
- Alfred Hitchcock [10]
- Alfredo Aceves [14]
- Alfredo Fígaro [9]
- Algeria [38]
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- Allen Stanford [17]
- Allergies [6]
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- Alonzo Gee [68]
- Alonzo Mourning [16]
- Alvin Gentry [10]
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- American Ballet Theatre [6]
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- American Football Conference (AFC) [106]
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- American Hockey League (AHL) [11]
- American Idol [42]
- American Le Mans Series [7]
- American League [230]
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- American Sam Querrey [7]
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- Americans United for Life [7]
- Ameritrade Holding Corp. [6]
- Amitabh Bachchan [6]
- Amnesty International [15]
- Amon G. Carter Stadium [20]
- AMR Corporation [60]
- Amtrak [9]
- Amusement Parks [7]
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- Ana Ivanović [10]
- Anabel Medina Garrigues [7]
- Anaheim Ducks [250]
- Anaheim, California [134]
- Anastasia Pavlyuchenkova [13]
- Anatolian Agency [6]
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- Anderson Varejão [123]
- Andray Blatche [93]
- Andre Agassi [12]
- Andre Drummond [59]
- Andre Ethier [37]
- Andre Iguodala [163]
- Andre Roberson [37]
- Andrea Bargnani [68]
- Andreas Seppi [14]
- Andrei Markov [25]
- Andrés Iniesta [8]
- Andretti Autosport [26]
- Andrew Bogut [179]
- Andrew Bynum [116]
- Andrew Cashner [27]
- Andrew Cogliano [52]
- Andrew Cuomo [24]
- Andrew Desjardins [21]
- Andrew Ference [24]
- Andrew Ladd [36]
- Andrew Luck [155]
- Andrey Golubev [7]
- Andris Biedriņš [20]
- Andruw Jones [15]
- Andy Dirks [10]
- Andy Greene [16]
- Andy LaRoche [9]
- Andy Levitre [7]
- Andy Pettitte [134]
- Andy Roddick [13]
- Ang Lee [37]
- Ángel Cabrera [17]
- Ángel Pagán [56]
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- Angela Merkel [34]
- Angela Stanford [17]
- Angelina Jolie [16]
- Angelo Scola [7]
- Angelo State University [5]
- Anheuser-Busch InBev [22]
- Aníbal Sánchez [70]
- Annie Dookhan [11]
- Annika Sörenstam [9]
- Anquan Boldin [159]
- Ansar Dine [13]
- Antarctica [5]
- Antawn Jamison [94]
- Anthony Bass [7]
- Anthony Bourdain [6]
- Anthony Dixon [16]
- Anthony Fasano [38]
- Anthony Hargrove [21]
- Anthony Hopkins [6]
- Anthony McCoy [9]
- Anthony Morrow [31]
- Anthony Rendon [9]
- Anthony Spencer [51]
- Anthony Swarzak [13]
- Anthony Tolliver [26]
- Anthony Varvaro [8]
- Anti-Defamation League [6]
- Antoine Cason [8]
- Antoine Roussel [16]
- Antoine Vermette [19]
- Antoine Winfield [41]
- Anton Khudobin [8]
- Antonin Scalia [9]
- Antonio Bastardo [28]
- Antonio Gates [15]
- Anwar Ibrahim [5]
- Anže Kopitar [96]
- AP Poll [42]
- Apollo Global Management [8]
- Apostolic Palace [13]
- Appalachian State University [8]
- Apple Inc. [54]
- Apple Itunes [7]
- Aqib Talib [22]
- Ar-Raqqah [8]
- Arab citizens of Israel [8]
- Arab League [6]
- Arab Spring [31]
- Arab World [5]
- Aramis Ramírez [46]
- Arcelormittal [7]
- Archibald Mathies [12]
- Archie Griffin [5]
- Architecture [14]
- Arctic [8]
- Arctic Ocean [5]
- Arena Football League (AFL) [8]
- Aretha Franklin [11]
- Argentina [39]
- Argentine People [5]
- Arian Foster [83]
- Aric Almirola [16]
- Ariel Prieto [6]
- Arizona [16]
- Arizona Cardinals [250]
- Arizona Daily Star [5]
- Arizona Diamondbacks [228]
- Arizona State University [46]
- Arjen Robben [7]
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- Arlington City Council [18]
- Arlington Fire Department [7]
- Arlington Martin [7]
- Arlington National Cemetery [11]
- Arlington Sam Houston [8]
- Arnaud Montebourg [6]
- Arnold Palmer [8]
- Arnold Palmer Invitational [5]
- Arnold Pistorius [9]
- Arnold Schwarzenegger [18]
- Arrelious Benn [6]
- Arron Asham [20]
- Arsène Wenger [7]
- Art Briles [19]
- Art Foundations [5]
- Art Modell [8]
- Art Museums [22]
- Arte Moreno [26]
- Artem Anisimov [19]
- Artemis Racing [8]
- Arthur Blank [18]
- Arthur Miller [6]
- Artificial Turf [6]
- The Arts [10]
- Arunachal Pradesh [5]
- Asdrúbal Cabrera [60]
- Ashleigh Barty [8]
- Ashley Judd [8]
- Ashley Monroe [7]
- Ashley Wagner [8]
- Asian Tour [14]
- Asif Ali Zardari [6]
- Assumption Parish, Louisiana [7]
- Aston Villa F.C. [12]
- Astronauts [9]
- Asyut [7]
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- AT&T [15]
- AT&T National [6]
- AT&T Park [42]
- AT&T Performing Arts Center [5]
- Athlete of the Year [12]
- Athletes [250]
- Atlanta [32]
- Atlanta Braves [250]
- Atlanta Falcons [203]
- Atlanta Public Schools [5]
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- Atlantic City, New Jersey [13]
- Atlantic Coast Conference [143]
- Atlantic Council [5]
- Atlantic Division (NBA) [28]
- Atlantic Division (NHL) [250]
- Atlantic Ocean [7]
- Atlantic Theater Company [5]
- Atlético Madrid [15]
- Atmos Energy [5]
- Auctions [11]
- Audience Measurement [10]
- Augusta National [34]
- Augusto Pinochet [8]
- Aung San Suu Kyi [21]
- Auschwitz Concentration Camp [5]
- Austin American-Statesman [53]
- Austin Daye [54]
- Austin Jackson [14]
- Austin Romine [9]
- Austin Toros [7]
- Austin Trout [5]
- Austin, Texas [8]
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- Australian Masters [5]
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- Authors [15]
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- Auto Racing [245]
- Auto Racing Celebrities [190]
- Auto Racing Teams [114]
- Auto Safety Agencies [36]
- Automakers [22]
- Automotive Industry [42]
- Avalanche [36]
- Avantha Masters [7]
- Avery Bradley [15]
- Avery Johnson [62]
- Aviation Associations [8]
- Aviation Industry [50]
- Ayumi Morita [19]
- AZ (football club) [6]
- Azle, Texas [10]
- Aztec [20]
- Azteca América [5]