| Harry LaRoss | |
| Position: | Outfielder |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 2 January 1888 |
| Birth Place: | Easton, Pennsylvania |
| Death Place: | Chicago, Illinois |
| Debutleague: | MLB |
| Debutdate: | June 24 |
| Debutyear: | 1914 |
| Debutteam: | Cincinnati Reds |
| Finalleague: | MLB |
| Finaldate: | July 23 |
| Finalyear: | 1914 |
| Finalteam: | Cincinnati Reds |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .229 |
| Stat2label: | Home runs |
| Stat2value: | 0 |
| Stat3label: | Runs batted in |
| Stat3value: | 5 |
| Teams: | |
Harry Raymond "Spike" LaRoss (January 2, 1888 – March 22, 1954) was a Major League Baseball outfielder who played for the Cincinnati Reds in .