| Bill Kay | |
| Position: | Outfielder |
| Bats: | Left |
| Throws: | Right |
| Birth Date: | 14 February 1878 |
| Birth Place: | New Castle, Virginia |
| Death Place: | Roanoke, Virginia |
| Debutleague: | MLB |
| Debutdate: | August 12 |
| Debutyear: | 1907 |
| Debutteam: | Washington Senators |
| Finalleague: | MLB |
| Finaldate: | October 5 |
| Finalyear: | 1907 |
| Finalteam: | Washington Senators |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .333 |
| Stat2label: | Home runs |
| Stat2value: | 0 |
| Stat3label: | Runs batted in |
| Stat3value: | 7 |
| Teams: |
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Walter Brocton "Bill" Kay (February 14, 1878 – December 3, 1945) was an outfielder in Major League Baseball. Nicknamed "King Bill", he played for the Washington Senators in 1907.[1]