Khorasan or Khurasan may refer to:
- Greater Khorasan, a historic region majority of which lies in modern day Iran, as well as parts of Afghanistan, and parts of the modern Central Asian states of Turkmenistan, Uzbekistan and Tajikistan. It was historically a Persian province.
- Khorasan Province, a pre-2004 province of Iran, subsequently divided into:
- South Khorasan Province
- North Khorasan Province
- Razavi Khorasan Province
- Khorosan, alternate name of Sain Qaleh, Iran
- Khorasan wheat, a wheat variety