| Election Name: | 1863 Boston mayoral election |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1862 Boston mayoral election |
| Previous Year: | 1862 |
| Election Date: | December 14, 1863 |
| Next Election: | 1864 Boston mayoral election |
| Next Year: | 1864 |
| Image1: | Frederic W. Lincoln Jr. 5210004 015 016 (3x4c).jpg |
| Candidate1: | Frederic W. Lincoln Jr. |
| Party1: | Republican |
| Popular Vote1: | 6,206 |
| Percentage1: | 69.26% |
| Candidate2: | Thomas P. Rich |
| Party2: | Democratic |
| Popular Vote2: | 2,142 |
| Percentage2: | 23.90% |
| Image3: | 3x4.svg |
| Candidate3: | Samuel R. Spinney |
| Colour3: | c0c0c0 |
| Party Name: | no |
| Party3: | Workingmen's |
| Popular Vote3: | 613 |
| Percentage3: | 6.84% |
| Mayor | |
| Before Election: | Frederic W. Lincoln Jr. |
| Before Party: | Republican |
| After Election: | Frederic W. Lincoln Jr. |
| After Party: | Republican |
The 1863 Boston mayoral election was held on December 14, 1863[1] and saw Frederic W. Lincoln Jr. reelected to a fifth overall term.
The Republican Party renominated Mayor Lincoln. Thomas P. Rich was nominated by the Democratic Party. Breakaway members of the Democratic Party formed the "Workingmen's" ticket and nominated Samuel R. Spinney.[2]
| Lincoln (Republican) | Rich (Democratic) | Spinney (Workingmen's) | Others | Top-2 margin (+/− if won by /) | Cumulative vote | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| align=center | Ward | Vote | % | Vote | % | Vote | % | Vote | % | Vote | % | Vote |
| 1st | 354 | 45.38 | 348 | 44.62 | 78 | 10.00 | 0 | 0.00 | + 6 | + 0.77 | 780 | |
| 2nd | 649 | 74.94 | 172 | 19.86 | 45 | 5.20 | 0 | 0.00 | + 477 | + 55.08 | 866 | |
| 3rd | 243 | 45.59 | 260 | 48.78 | 21 | 3.94 | 0 | 0.00 | − 17 | − 3.19 | 533 | |
| 4th | 420 | 83.83 | 78 | 15.57 | 3 | 0.60 | 0 | 0.00 | + 342 | + 68.26 | 501 | |
| 5th | 520 | 83.20 | 91 | 14.56 | 13 | 2.08 | 1 | 0.16 | + 429 | + 68.64 | 625 | |
| 6th | 706 | 84.15 | 122 | 14.54 | 11 | 1.31 | 0 | 0.00 | + 584 | + 69.61 | 839 | |
| 7th | 188 | 40.43 | 275 | 59.14 | 2 | 0.43 | 0 | 0.00 | − 87 | − 18.71 | 465 | |
| 8th | 455 | 75.58 | 134 | 22.26 | 13 | 2.16 | 0 | 0.00 | + 321 | + 53.32 | 602 | |
| 9th | 480 | 81.49 | 83 | 14.09 | 26 | 4.41 | 0 | 0.00 | + 397 | + 77.81 | 589 | |
| 10th | 421 | 67.25 | 150 | 23.96 | 55 | 8.79 | 0 | 0.00 | + 271 | + 43.29 | 626 | |
| 11th | 1,145 | 64.22 | 235 | 16.58 | 33 | 2.33 | 4 | 0.28 | + 910 | + 64.22 | 1,417 | |
| 12th | 625 | 55.65 | 185 | 16.47 | 313 | 27.87 | 0 | 0.00 | + 312 | + 27.78 | 1,123 | |
| Total | 6,206 | 69.22 | 2,142 | 23.89 | 613 | 6.84 | 5 | 0.06 | + 4,064 | + 45.33 | 8,966 | |