Thomas A. Clark is a Scottish artist and poet. Born in Greenock in 1944 he is now based in Pittenweem. Along with his wife Laurie he set up the Moschatel Press, as well as an experimental art space, the Cairn Gallery.
Clark acknowledges Ian Hamilton Finlay as a major influence in finding his own style, which has links with the Concrete Poetry movement. In addition to his books and smaller publications, Clark has also made site-specific installations in galleries, in gardens or in the landscape, and has many works in permanent collections world-wide.