Tiiu Kull (born 26 August 1958) is an Estonian botanist.[1] She specialises in the study of population dynamics in plant species and has published an extensive number of papers on the subject. In 1997 she conducted a study, "Population studies of native orchids in Estonia".
More recently Kull's research has seen her examine the irregularity of temporal patterns in perennial herbs as a phenomenon of intermodular interactions.