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Diarmaid O’Sullivan is an Irish realist painter based in Cork City, Ireland.

Check out his original paintings, Limited edition prints, Commissioned works or book one of his oil painting classes and workshops.

View original paintings
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Gift Vouchers Available

Gift vouchers for a range of different values and products.

Find out more
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Classes for both beginners and intermediate

Start your oil painting journey and book a class today.

Upcoming classes & workshops
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Limited edition prints

Limited edition prints available of all the DOS Artist oil paintings

View Prints
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Slide 1
Diarmaid O’Sullivan is an Irish realist painter based in Cork City, Ireland.

Check out his original paintings, Limited edition prints, Commissioned works or book one of his oil painting classes and workshops.

View original paintings
Slide 1
Gift Vouchers Available

Gift vouchers for a range of different values and products.

Find out more
Slide 2
Classes for both beginners and intermediate

Start your oil painting journey and book a class today.

Read more
Slide 3
Limited edition prints

Limited edition prints available of all the DOS Artist oil paintings

View Prints
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Beginner & Intermediate

Classes & Workshops

Book a place today in one of Diarmaid’s 5-week classes or 1-day workshops. Start your oil painting journey or touch up on your skills with these informative, technical, mindful, fun and relaxing experiences.

Upcoming Classes & Workshops

Paintings & Prints

Original oil paintings

View Originals

Custom Oil Painting

View Commissions

Limited Edition Prints

View Prints

Testimonials

What people are saying

My wife is a two-time cancer survivor and for her boxing gloves resemble the fighter in her. So I asked Diarmaid paint an image with boxing gloves. The level of detail in the painting is something else and my wife loves it. Diarmaid was a gent to deal with and ...

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Sean O'Brien
As someone with no previous experience of painting I can't recommend Diarmuid's oil painting classes highly enough. He is an incredible teacher and is extremely passionate about what he does. He is very friendly, welcoming, encouraging and supportive to both the experienced artists and the beginners and there is always ...

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Marion Troy
I did the beginners oil painting day and it was fantastic, it was a wonderful introduction to colour mixing and colour theory. Diarmaid has a great teaching manner and delivers clear instructions in a relaxed manner. It has wet my appetite for further classes.

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Catherine Hennessy
Diarmaid O'Sullivan has been an artist that I have followed for some years now. I own three pieces by him and have commissioned two additional pieces, this year, as gifts for loved ones.Diarmaid's ability to capture the perfect amount of detail and expression in a painting makes every piece feel ...

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Amy Walsh
I commissioned Diarmaid to paint two pieces for me over the past year and to say that he surpassed my expectations would be an understatement. The pieces were given as gifts and now hang in pride of place in the recipients homes.A joy to deal with ...

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Helen Quealy
Diarmaid's Oil painting for beginners day workshop was such a fun and informative way to spend a few hours. I learned all the basics I needed to begin experimenting with oils. Diarmaid is such a talented artist and he has an amazing ability to support and guide his students in ...

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Niamh Lenihan
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Shadow

Unique to you

Commissions

Get in touch today and have your special moments, loved ones, pets and places transformed into a bespoke original oil painting of the highest quality.

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Dos

Who is DOS Artist?

Diarmaid O’Sullivan is an Irish artist living and working in Cork City. He studied at Crawford College of Art and Design and graduated with a BA Honors in Fine Art in 2013. Since then his oil paintings have been included in numerous exhibitions and private collections, both nationally and internationally. Currently, he is a full-time member of Over the Line Studios and runs numerous classes and workshops in Cork City.

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Something special

Gift Vouchers

Looking for a gift but not sure what to get. Why not grab one of my gift vouchers.

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In the shop

Pieces by Dos Artist

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Testimonials

What people are saying

I have two commissioned pieces by Diarmaid and every time I look at them I am in awe of their detail and beauty. One is a family portrait and the other is of our beloved dog Abbie. They are both prominently displayed in our home and are constantly commented on ...

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Tracey Kelly Erazo
Couldn't recommend Diarmaid's classes highly enough. He is so friendly, welcoming and helpful and really encourages you along the way. I was nervous about the classes at first but by the end of the 6 weeks I'm feeling much more confident with my painting skills and have a lovely little ...

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Ciara Parsons
Diarmaid’s classes have been so enjoyable and informative from beginning to end. He gives such great, in-depth and understandable explanations about the hows and whys of painting. Even for complete beginners, we made such progress in only a short number of weeks. A really positive and fun atmosphere to work ...

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Shane O'Connell
I was looking for a birthday present for my parents, unfortunately our family pet of fifteen years had just passed away. I decided a painting of our lost family member would immortalise him forever. Diarmuid did a fantastic job capturing his character with a beautiful oil painting and it will ...

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Tom Murphy
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