Sial refers to the composition of the upper layer of the Earth's crust.
Sial may also refer to:
Places
- Sial, Kapurthala, Punjab State, India
- Sial, Khyber Pakhtunkhwa, Pakistan
- Sial Sharif, a small village in Pakistan
Other uses
- Air Sial, Sialkot, Pakistan, expected to begin operations in 2019
- Sial (tribe), a Jat tribe of the Punjab region
- Heer Sial (disambiguation)
- Sialkot (disambiguation)
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