Ḥet or H̱et (also spelled Khet, Kheth, Chet, Cheth, Het, or Heth) is the eighth letter of the Semitic abjads, including Phoenician Ḥēt Phoenician heth.png, Hebrew Ḥēt ח, Aramaic Ḥēth Heth.svg, Syriac Ḥēṯ ܚ, and Arabic Ḥā' ح.

Heth originally represented a voiceless fricative, either pharyngeal /ħ/, or velar /x/ (the two Proto-Semitic phonemes having merged in Canaanite[citation needed]). In Arabic, two corresponding letters were created for both phonemic sounds: unmodified ḥāʾ ح represents /ħ/, while ḫāʾ خ represents /x/.