This book contains original and survey papers on Singularities in Geometry and Topology, which resulted from the Sixth Franco-Japanese Symposium on Singularities, held in Fukuoka, from September 5-10, 2011. Though singularity theory originated in the 19th century, this field of research became more popular in France after Heisuke Hironaka came to Paris. Then, many collaborations between Japanese and French mathematicians started, and the conferences on Singularities in Geometry and Topology continue to develop this collaboration between France and Japan. This volume consists of two survey articles and 12 research articles whose topics include algebraic curves and varieties, line arrangements, mixed polynomials, algebraic local cohomology classes, stable maps, and mirror symmetry.