1981 ATP Challenger Series
The ATP Challenger Series is the second tier tour for professional tennis organised by the Association of Tennis Professionals. The 1981 ATP Challenger Series calendar comprises 46 tournaments, with prize money ranging from $25,000 up to $75,000.Schedule
January
February
March
April
May
June
July
August
September
November
December
These tables present the number of singles and doubles titles won by each player and each nation during the season, within all the tournament categories of the 1981 ATP Challenger Series. The players/nations are sorted by: total number of titles ; a singles > doubles hierarchy; alphabetical order.Titles won by player
Titles won by nation
| Total | Nation | S | D |
| 24 | | 8 | 16 |
| 14 | | 4 | 10 |
| 9 | | 5 | 4 |
| 7 | | 4 | 3 |
| 6 | | 5 | 1 |
| 5 | | 1 | 4 |
| 4 | | 3 | 1 |
| 4 | | 2 | 2 |
| 4 | | 1 | 3 |
| 3 | | 3 | 0 |
| 3 | | 1 | 2 |
| 3 | | 1 | 2 |
| 3 | | 0 | 3 |
| 2 | | 2 | 0 |
| 2 | | 1 | 1 |
| 2 | | 1 | 1 |
| 2 | | 0 | 2 |
| 1 | | 1 | 0 |
| 1 | | 1 | 0 |
| 1 | | 1 | 0 |
| 1 | | 1 | 0 |
| 1 | | 0 | 1 |
| 1 | | 0 | 1 |
| 1 | | 0 | 1 |
