Wikipedia:Popular pages
It is not known what are all time most viewed Wikipedia pages and the data for first years (2001-2007) is fragmentary. Multiyear ranking of most viewed Wikipedia pages (since December 1, 2007 to the present) is the closest we can get to.
Most-viewed pages were detected from earlier lists for shorter periods (named in "See also" below)
Number of views for the pages in these lists were found in Multiyear ranking of Wikipedia pages views, http://wikipediaviews.org/displayviewsformultipleyears.php (this site gives approximate number of views since December 1, 2007).
The undisputed leader is the Main page with 21 billion views. For comparison, Gangnam Style in Youtube has 2.5 billion views. It is not known which pages had led the all-time ranking during the first Wikipedia year, except that by the end of the first month (January 31, 2001) the all-time leader was Usenet cabal.[1]
Below is top-100 list:
98 98See also
stats.wikimedia.org: ZeitGeist
Wikipedia:Most popular pages October 2001
Wikipedia:Popular pages 2003: Oct.
Wikipedia:Popular pages 2004: Mar. through Sep.
Wikipedia:Popular pages 2008: May
Wikipedia:Most read articles in 2008
The 50 most-viewed Wikipedia articles in 2009 and 2008,
Wikipedia:Most read articles in 2009
Wikipedia:Most read articles in 2010
Most viewed articles on English Wikipedia 2012, http://tools.wmflabs.org/wikitrends/2012.html
Most viewed articles on English Wikipedia 2013, http://tools.wmflabs.org/wikitrends/2013.html
Most viewed articles on English Wikipedia 2014, http://tools.wmflabs.org/wikitrends/2014.html
Wikipedia article traffic statistics [2014], http://stats.grok.se/en/top
The open Wikipedia ranking [2014-2015]
Most viewed articles on English Wikipedia 2015, http://tools.wmflabs.org/wikitrends/2015.html