{{Infobox sportsperson|name=Alex Mullen|image=Alex Mullen, 2016 WMC, Dec 18.jpg|caption=Mullen di 2016 [[World Memory Championship]] di Singapura|fullname=Alexander Joseph Mullen|nationality=[[United States|Amerika Serikat]]|birth_date={{birth date and age|1992|03|03}}|birth_place=[[Princeton, New Jersey]], Amerika Serikat|residence=[[Jackson, Mississippi]]|website={{URL|www.mullenmemory.com}}|sport=[[Olahraga Daya Ingat|Daya Ingat]]|worlds=2015, 2016, 2017|highestranking=No. 1 (Maret 2018)}}
'''Alexander Joseph Mullen''' ({{lahirmati||3|3|1992}}) adalah seorang ahli daya ingat dan mahasiswa kedokteran, dan saat ini juara dunia memori.<ref>{{Cite web|url=http://iam-stats.com/master.php|title=Special Titles {{!}} International Association of Memory Statistics|website=www.iam-stats.com|access-date=2016-11-07}}</ref><ref name="taylor">Jordyn Taylor, [http://mic.com/articles/138105/meet-the-millennial-with-the-world-s-best-memory/ "The Person With the World's Best Memory Is a Millennial From the US"], in ''[[:en:Mic (media company)|Mic (media company)]]'', March 2016.</ref> Ia adalah orang Amerika Serikat pertama yang memenangkan gelar juara dunia, ia menjuarainya pada tahun 2015 dan 2016, dan saat ini berada di peringkat pertama dunia.<ref name="CLarticle">{{Cite news|url=http://www.clarionledger.com/story/news/2015/12/18/ummc-student-wins-world-memory-challenge/77570990/|title=UMMC student wins world memory challenge|last=Pettus|first=Gary|date=December 18, 2015|work=[[The Clarion Ledger]]|location=[[Jackson, Mississippi]]}}</ref><ref>{{Cite web|url=http://www.world-memory-statistics.com/competition.php?id=wmc2016|title=World Memory Championships 2016 (Combined) {{!}} World Memory Championships|website=www.worldmemorychampionships.com|access-date=2017-01-02}}</ref><ref>{{Cite web|url=http://iam-stats.com/rankings.php|title=World Ranking {{!}} International Association of Memory Statistics|website=www.iam-stats.com|access-date=2016-07-05}}</ref> Saat ini, ia juga merupakan juara bertahan USA Memory Championship.<ref>{{Cite web|url=http://www.usamemorychampionship.com/2016-final-top-9-ma-rankings/|title=2016 Final Top 9 MA Rankings {{!}} USA Memory Championship|website=www.usamemorychampionship.com|access-date=2016-05-10|archive-date=2016-05-25|archive-url=https://web.archive.org/web/20160525193310/http://www.usamemorychampionship.com/2016-final-top-9-ma-rankings/|dead-url=yes}}</ref> Bersama istrinya, ia mengelola MullenMemory, sebuah situs web yang "menyediakan sumber daya untuk menjelajahi teknik memori sebagai alat belajar."<ref>{{Cite web|url=http://mullenmemory.com/|title=Home {{!}} Mullen Memory|website=www.mullenmemory.com|access-date=2016-12-29}}</ref>
