Marianne Gunn O'Connor

An agent with Marianne Gunn O'Connor Literary Agency

About

Mariane represents a diverse range of authors from across the globe. She honours their gifts by giving them the freedom to express their artistic vision and by getting them the best deals possible. Through connections she has built up over the years, Marianne works with publishers worldwide who share her vision for her authors’ future, bringing the highest levels of enthusiasm, creativity and collaboration to her clients’ work. She has sold extensively to publishers in Ireland, UK, USA and in Europe. Marianne is proud to represent Booker-shortlisted, New York Times, Sunday Times and Irish bestsellers, winners of the IMPAC and Goldsmith’s book awards, as well as much-loved popular and children’s authors. She has negotiated several seven-figure deals both in publishing and in Film & TV. With the help of her co-agents she has sold clients’ work in over fifty territories.

Country

Ireland

AI Policy

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Statistics Synopsis

Slower: Marianne Gunn O'Connor's overall average response time is slower than most agents.

Learn more about our statistics

Collapse section Fiction Open

Audience:

Open to a broad Audience, including: Adults. Excluding: Children, Young adults.

Genres:

Open to all/most Genres, including:
General

Lengths:

Novel

Styles:

Open to all/most Styles, including: Literary, Mainstream.

Topics:

Open to all/most Topics.

Submissions:

Method: Email.
Simultaneous submissions: Simultaneous submissions are allowed.

Collapse section Nonfiction Open

Audience:

Open to a broad Audience.

Lengths:

Book

Styles:

Open to all/most Styles, including: Literary.

Topics:

Open to all/most Topics.

Submissions:

Method: Email.
Simultaneous submissions: Simultaneous submissions are allowed.

Always check guidelines for details and restrictions. If you aren't familiar with these terms, see our glossary.

No recent cover image of a book represented by Marianne Gunn O'Connor available.

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Marianne Gunn O'Connor Submission Statistics

The statistics in this section are compiled from submission reports sent to us through our submission tracker. They are not provided by the agency or by Duotrope's admins. Information in this section is updated a few times per day. Learn more about the statistics.

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Accuracy

We have received 4 reports from 3 different members within the past 12 months, not including pending responses (see below). The more responses reported, the more accurate the information.

Days Reported

124 min | 287.5 mean avg | 306.5 median | 413 max days (120.0 std dev)

Pending

3 responses are pending (18 min | 19.7 mean avg | 20.0 median | 21 max days waiting | 1.5 std dev) from 3 different members

Other Information

The agent will try to make a decision within 56 days. (100.0 % of the responses reported to us for this listing have taken longer than 56 days.)
Do not query on the status of your submission before 56 days have passed.
Date compiled: 15 Sep 2026 05:10 UTC (4 hours, 59 minutes ago).

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Dates

Last Updated: 23 Aug 2026

We check their guidelines for changes every four weeks, and we audit the listing twice a year.