Barbara A. Romanowicz (born 5 April 1950) is a French geophysicist and an expert on imaging the Earth's interior.

From 1982 to 1990, while working as a researcher at the Centre national de la recherche scientifique (CNRS), she developed a global network of seismic stations known as GEOSCOPE to study earthquakes and the interior structure of the Earth.

During her time at the Berkeley laboratory, she helped develop a real-time earthquake notification system for northern California.

In 2019, Romanowicz received the William Bowie Medal for "outstanding contributions for fundamental geophysics and for unselfish cooperation in research".

[6] Her citation includes: Dr. Romanowicz's research is characterized by innovative seismological theory, sophisticated numerical methods, and insightful interpretations that have illuminated key Earth processes.In 1979, Romanowicz married Mark Jonikas.