Thekla Susanne Ragnhild Resvoll (22 May 1871 – 14 June 1948) was a Norwegian botanist and educator.

These studies were Warmingian of nature, that is they were based on meticulous observations of plant individuals—their clonal and sexual propagation, perennation etc.

[3] Thekla Resvoll made a visit to Java and the botanic garden in Buitenzorg in 1923-24.

She found that they had hibernation buds and interpreted it as an unnecessary trait – a rudiment from their temperate origin.

[2] Alongside her academic career, Thekla Resvoll took part in the women's equality movement in Norway.