Proceedings of the 1st Russian-South African workshop within a research project on “Algorithmic support for knowledge discovery techniques based on Formal Concept Analysis” (RUZA'2015) December 2015, Stellenbosch, South Africa The proceedings are published online on the CEUR-Workshop web site in a series with ISSN 1613-0073, Vol-1552. Copyright c 2015-2016 for the individual papers by the papers' authors. Copying permitted only for private and academic purposes. This volume is published and copyrighted by its editors.