| Asa Tarbell Newhall | |
| Office: | 23rd Mayor of Lynn, Massachusetts |
| Term Start: | 1889 |
| Term End: | January 5, 1891 |
| Office2: | Member of the Massachusetts House of Representatives 12th Essex District |
| Term Start2: | 1904 |
| Term End2: | 1904 |
| Predecessor2: | William B. Phinney |
| Majority2: | 64 |
| Office3: | Member of the Massachusetts State Senate 5th Essex District |
| Term Start3: | 1887 |
| Term End3: | 1887 |
| Office4: | Member of the Lynn, Massachusetts Board of Aldermen |
| Term Start4: | 1901 |
| Term End4: | 1903 |
| Office5: | Member of the Lynn, Massachusetts Common Council |
| Term Start5: | 1885 |
| Term End5: | 1886 |
| Office6: | Member of the Lynn, Massachusetts School Committee |
| Term Start6: | 1891 |
| Term End6: | 1895 |
| Birth Date: | December 23, 1850 |
| Death Place: | United States |
| Occupation: | Farmer and Market gardener |
| Spouse: | Cinderella Chandler |
| Children: | Thomas Bancroft Newhall; Asa T. Newhall; Grace Garland Newhall; Bessie Little Newhall |
| Signature: | Asa T. Newhall signature.png |
| Death Date: | December |
Asa Tarbell Newhall (1846-1937) was a Massachusetts politician who served in both branches of the Massachusetts legislature, and as the 23rd Mayor of Lynn, Massachusetts. Newhall also served in both branches of the Lynn city council and on the city's school committee.
In 1903 Newhall was elected as a Democrat to serve in the Massachusetts House of Representatives of 1904. In the 1903 election Newhall received 1,371 votes coming in second behind Republican candidate John W. Blaney who received 1,434 votes, and just ahead of fellow Democrat Michael F. Phelan who received 1,307 votes. The district Newhall ran in sent two representatives to the Massachusetts House, so although Newhall came in second in the vote total he was elected. While in the House of 1904 Newhall served on the Committee on Prisons.
In 1904 Newhall was defeated in his bid for reelection. Newhall placed third in the balloting behind Republican Arthur W. Barker and fellow Democratic party candidate Michael F. Phelan.
He died in 1937.[1]