The following sources were used to compile the 100 Greatest Westerns list. Each source was added to a formula, and weighted on both critical value and recency. This means ranking higher on newer lists is more valuable than ranking higher on older lists.

Academy Award Best Picture Winners & Nominees (1929-2019)
AFI's 100 Years... 100 Movies  - 10th Anniversary Edition(2007)
AFI Awards (2000 - 2019)
AFI's Top 10 Sci-Fi (2008)
BFI Screen Guide 100 Westerns (2008)
The Black Film Canon (2016)
Cinema Fanatic's A Year With Women (2015)
Cowboys & Indians Magazine’s 100 Best Westerns Ever Made (2016)
Domestic Box Office by Tickets Sold (2019)
Flickchart Highest Ranking Western Films (2019)
Golden Globe Best Drama & Best Musical/Comedy Winners and Nominees (1944-2019)
Little White Lies' 100 Great Movies by Female Directors (2015)
Palme d'Or Winners (1955 - 2019)
Roger Ebert's Great Movies (2013)
Sight & Sound Critics Poll (2012)
Sight & Sound Directors Poll (2012)
Spaghetti Western Database Essential Films (2017)
Time Out’s The 50 Greatest Westerns (2015)

If you have any source suggestions for the 2020 version, please email me at