Columna de la Libertad de los Esclavos, Slavery memorial in central plaza of Ocaña, Colombia.

The Columna de la Libertad de los Esclavos is a stone and brick memorial standing in Ocaña's central plaza. Five rings encircle its base, symbolizing the five nations of the Bolivarian union in South America.

The column was erected in December 1851, the same year Congress passed the law of 21 May 1851 under President José Hilario López, which freed slaves from 1 January 1852 and compensated owners with interest-bearing bonds. The law also created manumission boards in each cantonal and provincial capital. Earlier steps included the 1821 freedom-of-womb law and the 1842 apprenticeship rules that extended dependence by seven years.

The column is the only monument in Colombia commemorating the abolition of slavery. It stands in Ocaña's main plaza, where the 1851 law ending slavery is remembered; the Ministry of Culture declared it a Bien de Interés Cultural on 11 April 2002.

The column stands in the main plaza of Ocaña, in Norte de Santander, at the coordinates 8.23540, -73.35389. It is a freestanding monument, so it can be walked around and viewed from all sides; the plaza is the town's central public space, and the column is reached on foot from the surrounding streets.

The column is the only monument in Colombia that commemorates the abolition of slavery. Congress passed the law on 21 May 1851, but slaves only became free on 1 January 1852, and owners were compensated with interest-bearing bonds. The Ministry of Culture declared it a Bien de Interés Cultural on 11 April 2002.