Sargento mayor ("sergeant major") was a rank immediately below that of maestre de campo in the Spanish tercios of the 16th and 17th centuries.
He also transmitted the orders of the maestre de campo or the capitán general to subordinate officers.
Initially second in command below Colonel in a coronelía, the Sargento Mayor later came to occupy the position immediately below the Maestre de Campo after the creation of the tercios in 1534 and until 1600.
Would also delegate orders from the Maestre de Campo or the Capitán General to lower level officers.
In the executive level of the Colombia National Police, it is equivalent to the rank of Comisario.