Joaquin Montañano Chipeco Jr., commonly known as Jun Chipeco, is a Filipino lawyer, politician, public administrator, civic leader, and realtor who last served representative of the Lone District of Calamba.

He also served as mayor of Calamba from 2004 to 2013, representative of the 2nd District of Laguna from 1987 to 1992, 1995 to 2004, and 2013 to 2019, vice governor of Laguna from 1986 to 1987, and provincial board member from 1971 to 1986.

[2] He greatly contributed to improving education, health, and infrastructure in his city.

He is the second member of the Chipeco family involved in politics.

On July 10, 2020, he is one of the 70 representatives who voted to reject the franchise renewal of ABS-CBN.