Sadness is an emotion associated with loss and grief.

Sad may also refer to:

• Sad, Oman, a village in Oman
• Sad, Podlaskie Voivodeship, a village in Poland
• Sad, Dnipropetrovsk Oblast, an urban settlement in Ukraine

• Ṣād (ﺹ), a letter of the Arabic alphabet
• Sandawe language (ISO 639 language code: sad), spoken in Tanzania
• Ṣād (surah), the thirty-eighth sura of the Qur'an

• Sad (album), a 1998 album by Nels Cline Trio
• "Sad!", a song by XXXTentacion from the album ?
• "Sad" (Elton John and Pnau song), on the album Good Morning to the Night
• "Sad", a song by Maroon 5 from the album Overexposed
• "Sad", a song by Bebe Rexha from the album Expectations
• "Sad", a song by Bo Burnham from the album what.
• "Sad", a song by Chico Rose featuring Afrojack
• "Sad", a song by Linkin Park on the album LP Underground 9: Demos
• "Sad", a song from the Pearl Jam album Lost Dogs

• #Sad!: Doonesbury in the Time of Trump, a collection of Doonesbury comic strips

• SAD (disambiguation)
• Sad Song (disambiguation)
• Sadness (disambiguation)