Players who made their Major League debut during the selected season. Player must have appeared in a game as a hitter or a pitcher.
Batting and Pitching statistics for debuts are available since 1957.
| Jimmy Barrett | 1899-09-13 | boxscore | 24.175 | OF | 5-7 | 170 | L | R | 1875-03-28 | Athol,MA | MLB | 1899-1908 | 1899-1908 | | premium | premium | premium |
| John Barry | 1899-05-30 | boxscore | 20.220 | 1B-OF | | 0 | R | R | 1878-10-27 | Newburgh,NY | MLB | 1899-1908 | 1899-1908 | | premium | premium | premium |
| Ginger Beaumont | 1899-04-21 | boxscore | 22.277 | OF | 5-8 | 190 | L | R | 1876-07-23 | Rochester,WI | MLB | 1899-1910 | 1899-1910 | | premium | premium | premium |
| Bill Bernhard | 1899-04-24 | boxscore | 28.046 | P | 6-1 | 205 | B | R | 1871-03-16 | Clarence,NY | MLB | 1899-1907 | 1899-1907 | | premium | premium | premium |
| Bill Bradley | 1899-08-26 | boxscore | 21.199 | 3B | 6-0 | 185 | R | R | 1878-02-13 | Cleveland,OH | MLB | 1899-1910 | 1899-1910 | | premium | premium | premium |
| Fritz Buelow | 1899-09-28 | boxscore | 23.233 | C | 5-10 | 170 | R | R | 1876-02-13 | Berlin,GE | MLB | 1899-1907 | 1899-1907 | | premium | premium | premium |
| Jack Chesbro | 1899-07-12 | boxscore | 25.043 | P | 5-9 | 180 | R | R | 1874-06-05 | North Adams,MA | MLB | 1899-1909 | 1899-1909 | | premium | premium | premium |
| Bill Coughlin | 1899-08-09 | boxscore | 21.033 | 3B | 5-9 | 140 | R | R | 1878-07-12 | Scranton,PA | MLB | 1899-1908 | 1899-1908 | | premium | premium | premium |
| Sam Crawford | 1899-09-10 | boxscore | 19.149 | OF | 6-0 | 190 | L | L | 1880-04-18 | Wahoo,NE | MLB | 1899-1917 | 1899-1917 | | premium | premium | premium |
| Pete Cregan | 1899-09-08 | boxscore | 24.154 | OF | 5-8 | 150 | R | R | 1875-04-13 | Kingston,NY | MLB | 1899-1903 | 1899-1903 | | premium | premium | premium |
| Frank Dillon | 1899-09-08 | boxscore | 25.332 | 1B | 6-1 | 185 | L | R | 1873-10-17 | Normal,IL | MLB | 1899-1904 | 1899-1904 | | premium | premium | premium |
| Mike Donlin | 1899-07-19 | boxscore | 21.055 | OF | 5-9 | 170 | L | L | 1878-05-30 | Peoria,IL | MLB | 1899-1914 | 1899-1914 | | premium | premium | premium |
| Patsy Flaherty | 1899-09-08 | boxscore | 23.076 | P | 5-8 | 165 | L | L | 1876-06-29 | Mansfield,PA | MLB | 1899-1911 | 1899-1911 | | premium | premium | premium |
| Tom Fleming | 1899-09-19 | boxscore | 25.309 | OF | 5-11 | 155 | L | L | 1873-11-20 | Philadelphia,PA | MLB | 1899-1904 | 1899-1904 | | premium | premium | premium |
| Tim Flood | 1899-09-24 | boxscore | 22.200 | 2B | 5-9 | 160 | R | R | 1877-03-13 | Montgomery City,MO | MLB | 1899-1903 | 1899-1903 | | premium | premium | premium |
| Emil Frisk | 1899-09-02 | boxscore | 24.328 | OF | 6-1 | 190 | L | R | 1874-10-15 | Kalkaska,MI | MLB | 1899-1907 | 1899-1907 | | premium | premium | premium |
| Noodles Hahn | 1899-04-18 | boxscore | 19.359 | P | 5-9 | 160 | L | L | 1879-04-29 | Nashville,TN | MLB | 1899-1906 | 1899-1906 | | premium | premium | premium |
| Jack Harper | 1899-09-18 | boxscore | 21.174 | P | 6-0 | 178 | R | R | 1878-04-02 | Galloway,PA | MLB | 1899-1906 | 1899-1906 | | premium | premium | premium |
| Charlie Hemphill | 1899-06-27 | boxscore | 23.073 | OF | 5-9 | 160 | L | L | 1876-04-20 | Greenville,MI | MLB | 1899-1911 | 1899-1911 | | premium | premium | premium |
| Lefty Herring | 1899-05-16 | boxscore | 19.077 | 1B-OF | 5-11 | 160 | L | L | 1880-03-04 | Philadelphia,PA | MLB | 1899-1904 | 1899-1904 | | premium | premium | premium |
| Rudy Hulswitt | 1899-06-16 | boxscore | 22.118 | SS | 5-9 | 165 | R | R | 1877-02-23 | Newport,KY | MLB | 1899-1910 | 1899-1910 | | premium | premium | premium |
| Otto Krueger | 1899-09-16 | boxscore | 22.004 | SS-OF | 5-7 | 165 | R | R | 1876-09-17 | Chicago,IL | MLB | 1899-1905 | 1899-1905 | | premium | premium | premium |
| Joe McGinnity | 1899-04-18 | boxscore | 28.036 | P | 5-11 | 206 | R | R | 1871-03-20 | Cornwall,IL | MLB | 1899-1908 | 1899-1908 | | premium | premium | premium |
| Frank McManus | 1899-09-14 | boxscore | 23.364 | C | 5-7 | 150 | | R | 1875-09-21 | Lawrence,MA | MLB | 1899-1904 | 1899-1904 | | premium | premium | premium |
| Jack O'Brien | 1899-04-14 | boxscore | 26.074 | OF | 6-1 | 165 | L | R | 1873-02-05 | Watervliet,NY | MLB | 1899-1903 | 1899-1903 | | premium | premium | premium |
| Red Owens | 1899-07-28 | boxscore | 24.275 | 2B | 5-10 | 175 | R | R | 1874-11-01 | Pottsville,PA | MLB | 1899-1905 | 1899-1905 | | premium | premium | premium |
| Freddy Parent | 1899-07-14 | boxscore | 23.251 | SS | 5-7 | 154 | R | R | 1875-11-11 | Biddeford,ME | MLB | 1899-1911 | 1899-1911 | | premium | premium | premium |
| Deacon Phillippe | 1899-04-21 | boxscore | 26.339 | P | 6-0 | 180 | R | R | 1872-05-23 | Rural Retreat,VA | MLB | 1899-1911 | 1899-1911 | | premium | premium | premium |
| Socks Seybold | 1899-08-20 | boxscore | 28.277 | OF | 5-11 | 175 | R | R | 1870-11-23 | Washingtonville,OH | MLB | 1899-1908 | 1899-1908 | | premium | premium | premium |
| Jimmy Slagle | 1899-04-17 | boxscore | 25.286 | OF | 5-7 | 144 | L | R | 1873-07-11 | Worthville,PA | MLB | 1899-1908 | 1899-1908 | | premium | premium | premium |
| Billy Sullivan | 1899-09-13 | boxscore | 24.230 | C | 5-9 | 155 | R | R | 1875-02-01 | Oakland,WI | MLB | 1899-1912 | 1899-1912 | | premium | premium | premium |
| Roy Thomas | 1899-04-14 | boxscore | 25.027 | OF | 5-11 | 150 | L | L | 1874-03-24 | Norristown,PA | MLB | 1899-1911 | 1899-1911 | | premium | premium | premium |
| Jimmy Williams | 1899-04-15 | boxscore | 22.121 | 2B | 5-9 | 175 | R | R | 1876-12-20 | St. Louis,MO | MLB | 1899-1909 | 1899-1909 | | premium | premium | premium |
| Highball Wilson | 1899-09-13 | boxscore | 21.040 | P | 5-9 | 164 | R | R | 1878-08-09 | Philadelphia,PA | MLB | 1899-1904 | 1899-1904 | | premium | premium | premium |
| 34 record(s) |