Ulrike Luise Tillmann FRS is a mathematician specializing in algebraic topology, who has made important contributions to the study of the moduli space of algebraic curves. She was the president of the London Mathematical Society in the period 2021–2022.

The London Mathematical Society (LMS) is one of the United Kingdom's learned societies for mathematics (the others being the Royal Statistical Society, the Institute of Mathematics and its Applications, the Edinburgh Mathematical Society and the Operational Research Society.