| Honorific Prefix: | Sir |
| Harry Newton | |
| Honorific Suffix: | Bt |
| Constituency Mp: | Harwich |
| Term Start: | 10 February 1910 |
| Term End: | 26 October 1922 |
| Predecessor: | Arthur Lever |
| Successor: | Albert Hillary |
| Country: | United Kingdom |
| Birth Date: | 2 April 1875 |
| Party: | Conservative |
Sir Harry Kottingham Newton, 2nd Baronet (2 April 1875 – 22 June 1951) was a British Conservative Party politician. He was elected member of parliament (MP) for Harwich in 1910, a seat he held until 1922.
Newton was educated at Rugby School and New College, Oxford. He served in the Second Boer War with a City volunteer regiment when his father was Lord Mayor. He was a Lieutenant of the City of London and a director of Harrods.
He died in June 1951, aged 76.