Susanne Maria Michaelis (born March 30, 1962 in Aachen) is a specialist in creole linguistics who is affiliated with the Max Planck Institute for Evolutionary Anthropology in Leipzig. She was previously at Leipzig University and at the Max Planck Institute for the Science of Human History in Jena.

She studied Romance linguistics at the University of Bonn, the University of Poitiers and the University of Freiburg, working with Wolfgang Raible and Annegret Bollée. Between 1991 and 1998 she was an assistant professor at the University of Bamberg. She received her Ph.D. thesis with a work on complex syntax in Seychelles Creole (Michaelis 1994), and she also worked on tense and aspect in Seychelles Creole, challenging Derek Bickerton's language bioprogram hypothesis. In more recent work, she has focused on the role of substrate languages in creole genesis (e.g. Michaelis 2008), and on asymmetric coding in creole languages (e.g. Michaelis 2019).

Michaelis is best known for coordinating and coediting the Atlas of Pidgin and Creole Language Structures (2013).

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