Samuel Thornton Jagger (30 June 1904 – 30 May 1964) was a Welsh first-class cricketer who played on more than 40 occasions between the wars.

[3] Jagger played no first-class cricket in 1924, but in the two years thereafter he appeared regularly for Cambridge and won his Blue.

[4] He also claimed five-wicket bags for Cambridge that season against Free Foresters (taking nine in the match) and Surrey,[5][6] the three bowling feats coming within a space of six weeks.

The game was dominated by 55-year-old Sydney Barnes' 12 wickets, and the wicketless Jagger's personal contribution was limited to a first-innings 30.

[8] Jagger played a little minor counties cricket for Denbighshire in 1930, but in 1931 returned for his final fling at first-class level, appearing three times without conspicuous success for Sussex.