Exhibitions (Selection)
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Solo exhibitions
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1998 Colonial Bank, Mobile, USA
1999 Personal Expressions, GC Inc., Manila, Philippines
2000 Bodies and Faces, Fort Bonifacio, Manila, Philippines
2001 A Foreign Perspective, Montblanc Gallery, Hong Kong
Deutsche Bank 24, Munich, Germany
2002 Under The Surface, Pasinger Fabrik, Munich, Germany
2003 Confrontation, Galerie 71, BMW, Munich, Germany
2004 Recent Paintings, Audi Akademie, Ingolstadt, Germany
2005 Past & Present, Hacienda Gallery, Mumbai, India
2008 Meet Me, Scariff Library, Scariff, Ireland
2009 Out of the Dark, Custom House Studios, Westport, Ireland
2010 (E)motion, Watergate Theatre Gallery, Kilkenny, Ireland
Exposed, Orangerie Englischer Garten, Munich, Germany
2020 Singulart, Virtual Exhibition
Transient, New Works by Katja Wittmer, Virtual Exhibition Kunstmatrix
2021 If not now then when?, Scariff library gallery
2022 Textured, Courthouse gallery Ennistymon, Ireland
2024 Blossom, Clare County ,
Group exhibitions
1998 Dreamland, Agora Gallery, NYC, USA
1999 Danny Barr Gallery, Sta. Maria, USA
2000 Wege zur Sinnlichkeit, WUK, Vienna, Austria
2001 Alte Schieberkammer, Vienna, Austria
2003 Mail-Art, Kunsthalle Kempten, Germany
2006 Blicklichter, Galerie der Dinge, Munich, Germany
2008 Snap To Grid, Los Angeles Centre for Digital Art, USA
2009 Sea, Shore, Sky Gallery, Westport, Ireland
2010 Custom House Studios, Westport, Ireland
Postcards to the G8, Chapel Gallery, Ontario, Canada
Back to the Source, Iniscealtra Arts Festival, Ireland
2011 Voice, Iniscealtra Arts Festival, Mountshannon. Ireland
Solas, Glor Gallery, Ennis, Ireland
Mad Art Gallery, Dublin, Ireland
2012 Berliner Liste 2012- Fair for contemporary Art
2017 Galerie Sophisticated Munich
2020 Winter Open Exhibition, Ennistymon Courthouse Gallery, Ireland
2022/23 Iniscealtra Arts Festival, group exhibition
2024 Summer Open exhibition, Courthouse gallery Ennistymon, Ireland