| Honorific-Prefix: | The Honorable |
| Justin Marc Chipeco | |
| Office: | 23rd Mayor of Calamba |
| 1Namedata: | Ross Rizal |
| Term Start: | June 30, 2013 |
| Term End: | June 30, 2022 |
| Predecessor: | Joaquin Chipeco Jr. |
| Successor: | Ross Rizal |
| Office2: | Member of the Philippine House of Representatives from Laguna's 2nd District |
| Term Start2: | June 30, 2004 |
| Term End2: | June 30, 2013 |
| Predecessor2: | Joaquin Chipeco Jr. |
| Successor2: | Joaquin Chipeco Jr. |
| Birth Name: | Justin Marc San Buenaventura Chipeco |
| Birth Date: | 1975 4, mf=yes |
| Birth Place: | Manila, Philippines |
| Nationality: | Filipino |
| Party: | Nacionalista (2004–2010; 2012–present) |
| Children: | 4 |
| Residence: | Magallanes Village, Makati Calamba, Laguna |
| Alma Mater: | De la Salle University (BS) San Beda College of Law Arellano University School of Law (LL.B.) |
| Profession: | Lawyer |
| Otherparty: | Liberal (2010–2012) LDP (2004) |
Justin Marc San Buenaventura Chipeco (April 6, 1975), more commonly known as Timmy Chipeco, is a Filipino lawyer and politician who served as city mayor of Calamba, Laguna from 2013 to 2022. He is also a former member of the House of Representatives of the Philippines, representing Laguna's 2nd District. He served this district for three consecutive terms, having first won in 2004, in 2007, and in 2010. He is the son of Joaquin Chipeco, Jr., the current legislative representative of the lone district of Calamba, He was defeated in an upset by Cha Hernandez in his run for Representative of the Lone District of Calamba.
Chipeco served as Representative, running under the banner of the Nacionalista Party. He defeated two independent candidates, Rosauro Revilla and Severino Vergara.
Chipeco is the Vice Chairperson of the Committee for Constitutional Amendments and a Member for the Majority of the Committees for Accounts, Banks and Financial Intermediaries, Housing and Urban Development, Public Works and Highways, and Southern Tagalog Development. He has authored 16 house measures and co-authored 31.