PTM

PTM may refer to:

• Parent-teacher meeting, a meeting of parents with teachers to discuss the progress of school students
• President's Tatrakshak Medal, a military decoration of the Indian Coast Guard
• Pashtun Tahafuz Movement, a human rights movement in Pakistan for the Pashtun people
• Polygyny threshold model, a theory explaining polygyny
• Polynomial texture mapping, a digital imaging technique
• Portugal. The Man, an American rock band
• Post-translational modification, covalent and generally enzymatic modification of proteins following protein biosynthesis by ribosomes
• Post-transition metal, a grouping of chemical elements
• Probabilistic Turing machine
• Pulse-time modulation, an alternative name for Pulse-width modulation