John Lithgow won the Primetime Emmy Awards for Outstanding Lead Actor in a Comedy Series three times (1996, 1997, 1999).
| Year | Contest | Category | For | Sources |
|---|---|---|---|---|
| 1999 | Primetime Emmy Awards | Outstanding Lead Actor in a Comedy Series | 3rd Rock from the Sun | 1 · 2 |
| 1997 | Primetime Emmy Awards | Outstanding Lead Actor in a Comedy Series | 3rd Rock from the Sun | 1 · 2 |
| 1996 | Primetime Emmy Awards | Outstanding Lead Actor in a Comedy Series | 3rd Rock from the Sun | 1 · 2 |