Mercedes "Cheding" Alvarez Lansang (born October 20, 1982), is a Filipino politician who served as Deputy Speaker of the House of Representatives of the Philippines and represented the 6th district of Negros Occidental.

On October 6, 2016, she married Major Dranreb "Dran" Lansang of the Philippine Army's 1st Scout Ranger Regiment.

[2] Alvarez was elected as member of the Board of the Forum of Young Parliamentarians from the Asia Pacific in Geneva, Switzerland.

She was fondly known for her quirky pictures lying on the road in southern Negros, showed during the last State of Nation Address of President Benigno Aquino III.

[6][7] Rep. Alvarez is a staunch advocate of sustainable tourism practices in the "CHICKS area," which stands for 6th district towns and cities composed of Cauayan, Hinoba-an, Ilog, Candoni, Kabankalan and Sipalay.