Daniel James Frost (born 29 November 1970) is a British Earth scientist amd Professor of Experimental Geosciences at the University of Bayreuth.

His research focuses on the nature of Earth's deep interior, including the chemistry of the mantle and how it led to the development of the atmosphere, and the physical and chemical processes through which planets form.

[2] Frost's work combines geochemistry and geophysics to investigate structures and processes deep in Earth's interior, notably its mantle.

[3] His research uses high-pressure and high-temperature experiments on mineral, rock, and magma properties, and also involves measuring the velocities of seismic waves to determine the chemical composition of Earth's deepest and most inaccessible layers.

[2] In 2019, a team of Bayreuth scientists, including Daniel Frost and Catherine McCammon, used high-pressure experiments to understand how carbon dioxide, water, and other oxygen-containing compounds escaped from Earth's mantle to form its atmosphere, so making the planet habitable.