| Ohio et al., to W. Va. | 22 |
| Ohio county north of Huron | 26 |
| Ohio county | 11 |
| Ohio conservatory | 17 |
| Ohio Congressman Pat | 20 |
| Ohio community named for a Connecticut town | 43 |
| Ohio college, or its town | 25 |
| Ohio college town | 17 |
| Ohio college that was the first in the U.S. to award degrees to women | 69 |
| Ohio college or its town | 24 |
| Ohio college or ancient city | 28 |
| Ohio college named for a biblical city | 38 |
| Ohio college locale | 19 |
| Ohio college attended by Karen O and Liz Phair | 46 |
| Ohio college | 12 |
| Ohio coachman? | 14 |
| Ohio club with a spring training facility in Sarasota | 53 |
| Ohio clock setting: Abbr. | 25 |
| Ohio city: Abbr. | 16 |
| Ohio city, to locals | 20 |
| Ohio city, familiarly | 21 |
| Ohio city, birthplace of President Hayes | 40 |
| Ohio city WSW of Columbus | 25 |
| Ohio city with schools named for Firestone, Goodyear, and Goodrich | 66 |
| Ohio city whose name means "hospitality" in Greek | 59 |
| Ohio city where William McKinley was born | 41 |
| Ohio city where Clark Gable lived | 33 |
| Ohio city where Alcoholics Anonymous was founded | 48 |
| Ohio city where A.A. was founded | 32 |
| Ohio city where a Burger King worker YouTubed himself bathing in the sink in 2008 | 81 |
| Ohio city on the Ohio | 21 |
| Ohio city on Lake Erie | 22 |
| Ohio city north of Dayton | 25 |
| Ohio city north of Columbus | 27 |
| Ohio city near Dayton | 21 |
| Ohio city named for a queen | 27 |
| Ohio city named for a mathematician | 35 |
| Ohio city after a cleanup? | 26 |
| Ohio city | 9 |
| Ohio cheerleader's request, twice | 37 |
| Ohio campus town | 16 |
| Ohio campus | 11 |
| Ohio cager, briefly | 19 |
| Ohio birthplace of William McKinley | 35 |
| Ohio birthplace of Toni Morrison | 32 |
| Ohio baseballers | 16 |
| Ohio band Over the ___ | 22 |
| Ohio ballplayers | 16 |
| Ohio and Oregon | 15 |
| Ohio airport code | 17 |
| Ohio A.L. team, on scoreboards | 30 |
| Ohia "Hearts ___ Arrived" | 35 |
| OHenry, for one | 15 |
| OH/CA cities | 12 |
| Oh./Ill. separator | 18 |
| Oh. or Miss. | 12 |
| Oh-Wah-___ (game like mancala) | 30 |
| Oh-so-superior | 14 |
| Oh-so-stylish | 13 |
| Oh-so-splendid | 14 |
| Oh-so-quaint, in England | 24 |
| Oh-so-precious | 14 |
| Oh-so-genteel | 13 |
| Oh-so-dramatic | 14 |
| Oh-so-dainty, in Devon | 22 |
| Oh-so-dainty | 12 |
| Oh-so-cute, in slang | 20 |
| Oh-so-cute facial features | 26 |
| Oh-so-cute carnival prizes, briefly | 35 |
| OH-H NICE! TELL ARISTIDE FOES... | 32 |
| OH-, for one | 12 |
| OH- or Cl-, chemically | 22 |
| Oh, woe! | 8 |
| Oh, what a relief it is! | 24 |
| Oh, to Ohm | 10 |
| Oh, to Hansel | 13 |
| Oh, to be in ancient Rome! | 26 |
| Oh, they owe | 12 |
| Oh, so softly: Mus. abbr. | 25 |
| Oh, so many moons | 17 |
| Oh, so elegant | 14 |
| Oh, on the Oder | 15 |
| OH, OK, etc., e.g. | 18 |
| Oh, oh! | 7 |
| Oh, my! | 7 |
| Oh, in Heidelberg | 17 |
| Oh, in Frankfurt | 16 |
| Oh, Howe he could invent! | 25 |
| Oh, God! | 8 |
| Oh, God | 7 |
| Oh, dear! | 9 |
| Oh, dear | 8 |
| Oh's role in "Grey's Anatomy" | 47 |
| Oh! in Oschatz | 14 |
| Oh! in Offenbach | 16 |
| Oh! cable network co-founder | 28 |
| Oh! | 3 |
| Oh _____ in England | 19 |
| Oh so very | 10 |
| Oh so proper | 12 |