WeightWatchers
1963-2003
19??-2003 (United Kingdom)
2003-2012 (US, Canada, China), 2003-2015 (United Kingdom), 2003-2018 (International)
2012-2018 (US, Canada, China)
2015-2018 (United Kingdom)
WW
2018-present
The logo is a slightly modified version of the 2015 WeightWatchers UK symbol.