Emilios T. Harlaftis (Greek: Αιμίλιος Χαρλαύτης; 29 March 1965 – 13 February 2005) was an astrophysicist.

He held a series of posts as a visiting scientist at the University of Sheffield, and the NASA Goddard Space Flight Center (1999), and two years as a temporary Reader at the School of Physics and Astronomy at the University of St. Andrews (2001–2002).

His main research contribution is the co-discovery of spiral waves in a solar-size accretion disk, pioneering analysis determining mass ratios of black hole systems using the Keck-I telescope, contribution to accretion disc physics and finally extensive analysis and image processing using the Doppler tomography technique with applications on interactive binaries resolving emission components such as the inner face of the companion star, the gas stream and the impact region of the gas stream on the accretion disk (bright spot).

In 2005, Harlaftis was participating in an expedition to Mount Menalon organized by the Athens Climbing Club (Oreivatikos Syllogos) when the party was caught in an avalanche.

[4] In 2020, the Hellenic Astronomical Society, decided to accept a generous offer of the Harlaftis family and renamed the best PhD thesis prize awarded biennially to a junior member of the Society, to "Best PhD thesis prize - Emilios Harlaftis".