Charles Meldrum, CMG FRS FRAS FRMetS (29 October 1821 – 28 August 1901) was a Scottish meteorologist and astronomer.
In 1846 he was appointed to the education department, Bombay, and two years later was transferred to the Royal College of Mauritius as Professor of Mathematics.
In 1862 he was appointed government observer in charge of the small meteorological observatory then maintained at Port Louis, Mauritius, where he analysed ships' logs to work out the laws of cyclones in the Indian Ocean.
He is credited as being the first to empirically confirm that cyclone winds blow in a spiral towards the centre of a storm, rather than in a circular motion.
As before, the principal work of the observatory was the study of the movement of storms, but from 1880 photographs of the solar surface were taken daily to supplement the series made at Greenwich and Dehra Dun in north India to create a continuous record of the number of sunspots.