| Ornamental cord on clothing | 27 |
| Ornamental climbing vine | 24 |
| Ornamental climbing plant | 25 |
| Ornamental armor piece | 22 |
| Ornamental altar screens | 24 |
| Ornamental accessories | 22 |
| Ornament shaped like an egg | 27 |
| Ornament shaped like a flower | 29 |
| Ornament resembling a flower | 28 |
| Ornament near the ground | 24 |
| Ornament made of ribbons | 24 |
| Ornament for a uniform | 22 |
| Ornament carved in relief | 25 |
| Ornament atop a church | 22 |
| Ornament a metal surface | 24 |
| Ormandy, to a Berliner | 22 |
| Ormandy or O'Neill | 22 |
| Ormandy and O'Neill | 23 |
| Orly plane, once (briefly) | 26 |
| Orlop and promenade, for two | 28 |
| Orléans-to-Paris dir. | 24 |
| Orléans's river | 22 |
| Orlando-to-Ft. Myers dir. | 25 |
| Orlando-to-D.C. heading | 23 |
| Orlando-area attraction | 23 |
| Orlando's ___ Bowl | 22 |
| Orlando's ___ Arena | 23 |
| Orlando's state: Abbr. | 26 |
| Orlando's state, briefly | 28 |
| Orlando's place (abbr.) | 27 |
| Orlando's basketball team | 29 |
| Orlando team water boy, e.g.? | 29 |
| Orlando Predators' grp. | 27 |
| Orlando of diamond fame | 23 |
| Orlando Magic coach Van Gundy | 29 |
| Orkney's Skara ____ | 23 |
| Orkney native, for one | 22 |
| Orkney land-tenure system | 25 |
| Orkney Islands settler | 22 |
| Orkney Islands ancient | 22 |
| Orkin agent's quarry | 24 |
| Orion, with "the" | 27 |
| Orion's hunting companion | 29 |
| Orion's brightest star | 26 |
| Orion's bright spot | 23 |
| Orion Mars mission gp. | 22 |
| Orion made love to her | 22 |
| Orioles, Eagles or Cardinals | 28 |
| Orioles third baseman Melvin | 28 |
| Orioles team physician? | 23 |
| Orioles manager Mazzilli | 24 |
| Orioles catcher Hernández | 28 |
| Oriole's home, perhaps | 26 |
| Oriole's distant relative | 29 |
| Oriole Park at ___ Yards | 24 |
| Oriole Park at __ Yards | 23 |
| Oriole or Yankee, slangily | 26 |
| Oriole or Yankee, informally | 28 |
| Oriole or Yankee, briefly | 25 |
| Oriole or Tiger, informally | 27 |
| Oriole or Tiger, for short | 26 |
| Oriole or Blue Jay, for short | 29 |
| Oriole or Blue Jay, e.g. | 24 |
| Orinoco y Guadalquivir | 22 |
| Orinoco Flow singer | 22 |
| Origins of earthquakes | 22 |
| Origins Game Fair, e.g. | 23 |
| Originators of putt-putts | 25 |
| Originator of Jellicle Cats | 27 |
| Originator of euphuism | 22 |
| Originator of cutout dresses | 28 |
| Originating within a company | 28 |
| Originating in the sea | 22 |
| Originating in the intellect | 28 |
| Originating from within | 23 |
| Originate, so to speak | 22 |
| Originate, as a phrase | 22 |
| Originally, a male servant | 26 |
| Originally, a choral song | 25 |
| Original, at Oktoberfest | 24 |
| Original Woodstock rocker | 25 |
| Original U.S. space station | 27 |
| Original Thanksgiving fare | 26 |
| Original subway line in NYC | 27 |
| Original Speed Stick maker | 26 |
| Original source of calico | 25 |
| Original site of U. of Nevada | 29 |
| Original Shakespeare edition | 28 |
| Original Robinson Crusoe | 24 |
| Original Roanoke settlement? | 28 |
| Original portrayer of Obi-Wan | 29 |
| Original Oreo competitor | 24 |
| Original Olympics site | 22 |
| Original Obi-Wan portrayer | 26 |
| Original NYC subway operator | 28 |
| Original number for a nation | 28 |
| Original nudist colony | 22 |
| Original name preceder | 22 |
| Original name of Volgograd | 26 |
| Original name of Pius XI | 24 |