Llansawel is a village and community in Carmarthenshire, Wales, about ten miles north of Llandeilo. It covers an area of 4,079 hectares (15.75 sq mi). The community is bordered by the communities of: Pencarreg; Cynwyl Gaeo; Talley; Llanfynydd; Llanfihangel Rhos-y-Corn; and Llanybydder, all being in Carmarthenshire.
- John Williams (died 1613), Principal of Jesus College, Oxford, from 1602 to 1613 and also Dean of Bangor.
- Griffith Powell (1561–1620), a philosopher and Principal of Jesus College, Oxford, from 1613 to 1620.
- DJ Williams (1885–1970), Welsh-language writer and Plaid Cymru co-founder