| Third person ending of old | 26 |
| Third person masculine? | 23 |
| Third place at Belmont | 22 |
| Third place at Pimlico | 22 |
| Third place at the Preakness | 28 |
| Third place, at the Preakness | 29 |
| Third place, at the track | 25 |
| Third planet from die Sonne | 27 |
| Third planet from le soleil | 27 |
| Third point, in tennis | 22 |
| Third point, to Serena | 22 |
| Third president of Egypt | 24 |
| Third Reich architect Albert | 28 |
| Third Reich police force | 24 |
| Third Reich secret police | 25 |
| Third rock from the sun | 23 |
| Third rock from the sun? | 24 |
| Third Servile War leader | 24 |
| Third shoe width beyond D | 25 |
| Third son in the Bible | 22 |
| Third son of Adam and Eve | 25 |
| Third son of Jacob and Leah | 27 |
| Third son of King David | 23 |
| Third son of the first man | 26 |
| Third spin: getting colder | 26 |
| Third stomach of a ruminant | 27 |
| Third tone of a musical scale | 29 |
| Third U.S. Vice President | 25 |
| Third wife of Augustus Caesar | 29 |
| Third wife of Henry VIII | 24 |
| Third word in a limerick | 24 |
| Third word in many limericks | 28 |
| Third word in the ladder | 24 |
| Third word of America | 24 |
| Third word of many limericks | 28 |
| Third word of P.O. motto | 24 |
| Third X, in a simple game | 25 |
| Third ___ (track adjunct) | 25 |
| Third-base coach's sign | 27 |
| Third-busiest U.S. airport | 26 |
| Third-century Chinese dynasty | 29 |
| Third-century invaders | 22 |
| Third-generation Genesis name | 29 |
| Third-generation nickname | 25 |
| Third-generation Oscar winner | 29 |
| Third-largest asteroid | 22 |
| Third-largest city in Italia | 28 |
| Third-largest city in Japan | 27 |
| Third-largest city in Poland | 28 |
| Third-largest city of France | 28 |
| Third-largest E African lake | 28 |
| Third-largest Hawaiian island | 29 |
| Third-largest island of Italy | 29 |
| Third-largest Italian island | 28 |
| Third-largest moon of Saturn | 28 |
| Third-largest Turkish city | 26 |
| Third-lightest halogen | 22 |
| Third-longest river in Africa | 29 |
| Third-oldest U.S. university | 28 |
| Third-party candidate in 1992 | 29 |
| Third-party candidate of 2000 | 29 |
| Third-party candidate, maybe | 28 |
| Third-party collateral | 22 |
| Third-party vote, at times | 26 |
| Third-person contraction | 24 |
| Third-person ending of old | 26 |
| Third-place finisher, e.g. | 26 |
| Third-quarter antecedent | 24 |
| Third-quarter phenomenon | 24 |
| Third-rank univ. student | 24 |
| Third-smallest of nine | 22 |
| Third-Sunday-in-June honoree | 28 |
| Third-to-last Greek letter | 26 |
| Third-year deer: Brit. | 22 |
| Third-year hurdles, for some | 28 |
| Third-year students: Abbr. | 26 |
| Thirst quenchers, in a way | 26 |
| Thirst-quenching sound | 22 |
| Thirst-quenching units | 22 |
| Thirsty toddler's request | 29 |
| Thirsty tot's request | 25 |
| Thirteen Bishops of Rome | 24 |
| Thirteen of a certain kind | 26 |
| Thirteen similar cards | 22 |
| Thirteen tarts, at times | 24 |
| Thirteen tarts, perhaps | 23 |
| Thirteen that rebelled | 22 |
| Thirteen Vatican leaders | 24 |
| Thirteen, to some bakers | 24 |
| Thirteen-day siege site | 23 |
| Thirteen-figure figure | 22 |
| Thirteen-foot bat-eater | 23 |
| Thirteenth Hebrew letter | 24 |
| Thirteenth-century starter | 26 |
| Thirtieth anniversary gift | 26 |
| Thirtieth vice president | 24 |
| Thirtieth-anniversary gift | 26 |
| Thirty days, or even life | 25 |
| Thirty minutes, for a Jet | 25 |
| Thirty minutes, to a Charger | 28 |