O.ars.
Cambridge, Massachusetts, and Weare, New Hampshire.
Edited by Don Wellman.
Nos. 1–9 (1981–93/94). No. 1 is titled “Coherence”; no. 2 “Perception”; no. 3 (a) is the first of three volumes in a series comprising “Translations: Experiments in Reading”; no. 4 (b); no. 5 (c); no. 6/7 is “Voicing”; no. 8 is “Censorship and the Situation of Poetry”; no. 9 is “Frames, Forms, and Meaning.”

Occurence.
Mechanicsburg, Pennsylvania.
Edited by John Wilson.
Nos. 1–8 (1973–78).

Oculist Witnesses.
Dorchester, Massachusetts.
Edited by Alan Davies.
Nos. 1–4 (Summer 1975–1978). No. 4 comprises Local Color/Eidetic Deniers by Michael Gottlieb.

Odda-Tala.
San Francisco and Palo Alto, California.
Edited by D. Alexander.
Nos. 1–3 (1968–69).

Oink!

Ole.
Bensonville, Illinois, and San Fransisco.
Edited by Douglas Blazek.
Nos. 1–8 (1964–67).

The Once Series.
Brightlingsea, England.
Edited by Tom Clark.
A series of 12 one-shot magazines each with a different title: Once, Twice, Thrice, Thrice and a 1/2, Frice, Vice, Spice, Slice, Ice, Nice, Dice, and Lice. Once also published these books: Tone Arm by Ron Padgett; Airplanes by Tom Clark; Toad Poems by Tom Veitch; Blood of a Poet by Harry Fainlight.

Only Prose.
New York City.
Edited by John Perreault and Jeff Weinstein.
No. 1, sole issue (July 1971).

Open Reading.
Rohnert Park, California.
Edited by David Bromige.
Second Series, nos. 1–4/5 (March 1972–74).

Open Skull.
San Francisco.
Edited by Douglas Blazek.
No. 1, sole issue (1967).

Open Space.

Open Window.
New York City.
Edited by Vincent Katz and Paul Schneeman.
Nos. 1–2 (Spring 1976–Fall 1976).

Or.
Boulder, Colorado.
Edited by David Sanberg.
Nos. 1–2 (1966). No. 1 (April 1966) entitled Or; no. 2 (December 1966) entitled O’er.

Oriental Blue Streak.
Placitas, New Mexico.
Edited by Larry Goodell and Joe Bottone.
Sole issue (1968).

Origin.

Out of Sight.
San Francisco.
Edited by Gino Clays.
Vol. 1, nos. 1–2 (1966).

The Outsider.
New Orleans, Louisiana, and Tucson, Arizona.
Edited by Jon and Louise “Gypsy Lou” Webb.
Nos. 1–4/5 (1961–69).

Oyez Press.