| Jack Ansell | |
| Fullname: | William John Ansell[1] |
| Birth Date: | 4 August 1921 |
| Birth Place: | Newport Pagnell, England |
| Death Place: | England |
| Position: | Goalkeeper |
| Years1: | ?–1948 |
| Years2: | 1948–1952 |
| Years3: | 1952–1955 |
| Clubs1: | Bletchley Brickworks |
| Clubs3: | Headington United |
| Caps1: | ? |
| Caps2: | 131 |
| Caps3: | 149 |
| Goals1: | ? |
| Goals2: | 0 |
| Goals3: | 0 |
| Totalcaps: | 280 |
| Totalgoals: | 0 |
William John Ansell (4 August 1921 – 22 April 2008), more commonly known as Jack Ansell, was an English footballer who played for Bletchley Brick Works, Northampton Town and Oxford United. During his spell at Northampton, he played 105 consecutive league and cup games, before a broken leg ended the run.[2] He died on 22 April 2008.[2]