Simec may refer to:
SIMEC, a submarine vehicle manufacturing company, subsidiary of Orange Marine SIMeC, a local currency in Guardiagrele, Italy, created by Giacinto Auriti Maja Šimec, Miss Slovenia 1997 Grupo Simec, a Mexican steel company traded on the Bolsa Mexicana de Valores SIMEC Group (Shipping, Infrastructure, Mining, Energy and Commodities), a member of the GFG Alliance