| Club: | Newcastle United |
| Season: | 1899–1900 |
| Manager: | Selection committee (overseen by Frank Watt) |
| Stadium: | St James' Park |
| League: | Football League First Division |
| League Result: | 5th |
| Cup1: | FA Cup |
| Cup1 Result: | Second Round |
| League Topscorer: | Jack Peddie (15) |
| Season Topscorer: | Jack Peddie (16) |
| Highest Attendance: | 30,000 (vs. Sheffield United) |
| Lowest Attendance: | 6,000 (vs. Glossop) |
| Average Attendance: | 15,818 |
| Pattern La1: | _black_stripes |
| Pattern B1: | _blackstripes3 |
| Pattern Ra1: | _black_stripes |
| Leftarm1: | FFFFFF |
| Body1: | FFFFFF |
| Rightarm1: | FFFFFF |
| Shorts1: | 000066 |
| Socks1: | 000000 |
| Pattern B2: | _collar |
| Leftarm2: | 00b8fb |
| Body2: | 00b8fb |
| Rightarm2: | 00b8fb |
| Shorts2: | 000066 |
| Socks2: | 000000 |
| Prevseason: | 1898–99 |
| Nextseason: | 1900–01 |
The 1899–1900 season was Newcastle United's second season in the Football League First Division, the top flight of English football at the time. Newcastle finished the season in 5th place.
| Pos. | Name | League | FA Cup | Total | ||||
|---|---|---|---|---|---|---|---|---|
| Apps | Goals | Apps | Goals | Apps | Goals | |||
| GK | Matt Kingsley | 34 | 0 | 1 | 0 | 35 | 0 | |
| GK | Charlie Watts | 0 | 0 | 1 | 0 | 1 | 0 | |
| DF | Jack Carr | 21 | 1 | 2 | 0 | 23 | 1 | |
| DF | Dave Gardner | 34 | 1 | 1 | 0 | 35 | 1 | |
| DF | Billy Lindsay | 23 | 0 | 0 | 0 | 23 | 0 | |
| DF | Jimmy Lindsay | 2 | 0 | 0 | 0 | 2 | 0 | |
| MF | Andy Aitken | 34 | 0 | 2 | 0 | 36 | 0 | |
| MF | Ted Birnie | 7 | 0 | 1 | 0 | 8 | 0 | |
| MF | Alex Gardner | 19 | 6 | 2 | 0 | 21 | 6 | |
| MF | Tommy Ghee | 29 | 1 | 2 | 0 | 31 | 1 | |
| MF | Willie Higgins | 18 | 1 | 2 | 0 | 20 | 1 | |
| MF | Jack Ostler | 1 | 0 | 0 | 0 | 1 | 0 | |
| MF | Colin Veitch | 1 | 0 | 0 | 0 | 1 | 0 | |
| FW | John Fraser | 30 | 8 | 2 | 0 | 32 | 8 | |
| FW | Sandy MacFarlane | 31 | 5 | 1 | 0 | 32 | 5 | |
| FW | Barney Mole | 1 | 1 | 0 | 0 | 1 | 1 | |
| FW | Tom Niblo | 11 | 2 | 0 | 0 | 11 | 2 | |
| FW | Jack Peddie | 27 | 15 | 2 | 1 | 29 | 16 | |
| FW | Joe Rogers | 24 | 2 | 1 | 1 | 25 | 3 | |
| FW | Jimmy Stevenson | 9 | 5 | 2 | 1 | 11 | 6 | |
| FW | Willie Wardrope | 18 | 4 | 0 | 0 | 18 | 4 | |
| Round | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Result | 1–1 | 2–0 | 3–2 | 2–0 | 1–2 | 6–0 | 0–1 | 0–0 | 0–1 | 1–2 | 1–1 | 3–1 | 0–0 | 0–1 | 2–2 | 2–4 | 4–2 | 2–3 | 2–3 | 4–1 | 1–2 | 2–1 | 1–1 | 3–2 | 1–0 | 0–2 | 2–0 | 1–3 | 1–4 | 3–1 | 0–0 | 0–0 | 0–0 | 2–2 | 2–1 | |
| Position | 9th | 3rd | 4th | 3rd | 6th | 4th | 4th | 5th | 5th | 7th | 9th | 5th | 5th | 8th | 9th | 10th | 9th | 11th | 10th | 11th | 10th | 10th | 9th | 7th | 7th | 6th | 6th | 6th | 7th | 6th | 6th | 6th | 6th | 5th |