| Third-largest city in Poland | 28 |
| Third-largest city in Japan | 27 |
| Third-largest city in Italia | 28 |
| Third-largest asteroid | 22 |
| Third-generation Oscar winner | 29 |
| Third-generation nickname | 25 |
| Third-generation Genesis name | 29 |
| Third-century invaders | 22 |
| Third-century Chinese dynasty | 29 |
| Third-busiest U.S. airport | 26 |
| Third-base coach's sign | 27 |
| Third ___ (track adjunct) | 25 |
| Third X, in a simple game | 25 |
| Third word of P.O. motto | 24 |
| Third word of many limericks | 28 |
| Third word of America | 24 |
| Third word in the ladder | 24 |
| Third word in many limericks | 28 |
| Third word in a limerick | 24 |
| Third wife of Henry VIII | 24 |
| Third wife of Augustus Caesar | 29 |
| Third U.S. Vice President | 25 |
| Third tone of a musical scale | 29 |
| Third stomach of a ruminant | 27 |
| Third spin: getting colder | 26 |
| Third son of the first man | 26 |
| Third son of King David | 23 |
| Third son of Jacob and Leah | 27 |
| Third son of Adam and Eve | 25 |
| Third son in the Bible | 22 |
| Third shoe width beyond D | 25 |
| Third Servile War leader | 24 |
| Third rock from the sun? | 24 |
| Third rock from the sun | 23 |
| Third Reich secret police | 25 |
| Third Reich police force | 24 |
| Third Reich architect Albert | 28 |
| Third president of Egypt | 24 |
| Third point, to Serena | 22 |
| Third point, in tennis | 22 |
| Third planet from le soleil | 27 |
| Third planet from die Sonne | 27 |
| Third place, at the track | 25 |
| Third place, at the Preakness | 29 |
| Third place at the Preakness | 28 |
| Third place at Pimlico | 22 |
| Third place at Belmont | 22 |
| Third person masculine? | 23 |
| Third person ending of old | 26 |
| Third person biblical verb | 26 |
| Third party with you and me | 27 |
| Third party label: Abbr. | 24 |
| Third part of the quote | 23 |
| Third part of the quip | 22 |
| Third part of the message | 25 |
| Third part of the joke | 22 |
| Third part of the headline | 26 |
| Third part of the description | 29 |
| Third part of a sage thought | 28 |
| Third part of a rhyme scheme | 28 |
| Third or hand follower | 22 |
| Third of three choices | 22 |
| Third of three black keys | 25 |
| Third of Field's trio | 25 |
| Third of a Seinfeld line | 24 |
| Third of a Latin sextet | 23 |
| Third of a Latin paradigm | 25 |
| Third of a Freudian trio | 24 |
| Third note of a C minor scale | 29 |
| Third note in a B-major scale | 29 |
| Third Marshal of Riddermark | 27 |
| Third man's namesakes | 25 |
| Third man from the first man | 28 |
| Third line on a ballot: Abbr. | 29 |
| Third line of the verse | 23 |
| Third line of the limerick | 26 |
| Third letter after delta | 24 |
| Third largest land mammal | 25 |
| Third largest city in Florida | 29 |
| Third largest asteroid | 22 |
| Third item of evidence, maybe | 29 |
| Third in a Latin series | 23 |
| Third in a Latin recital | 24 |
| Third follower, at times | 24 |
| Third digit of current year | 27 |
| Third degrees, usually | 22 |
| Third degree, in a way | 22 |
| Third degree, for some | 22 |
| Third Crusade siege site | 24 |
| Third col. on a calendar | 24 |
| Third cliché of the speech | 29 |
| Third bk. of the Bible | 22 |
| Third bk of the Bible. | 22 |
| Third baseman Rodriguez | 23 |
| Third baseman Longoria | 22 |
| Third base, so to speak | 23 |
| Third base, in baseball lingo | 29 |
| Third base, colloquially | 24 |
| Third Army commander in WWII | 28 |
| Third anniversary gift | 22 |