Following is the list of Top 10 Countries With Most Grand Slam Titles In Open Era:
| Rank | Country | Number of Grand Slam Singles Titles |
| 1 | United States | 51 |
| 2 | Sweden | 25 |
| 3 | Australia | 21 |
| 4 | Czech Republic | 12 |
| 5 | Spain | 8 |
| 6 | Germany | 7 |
| 7 | Argentina | 5 |
| 8 | Switzerland | 5 |
| 9 | Russia | 4 |
| 10 | Brazil | 3 |
