Pilar Juliana Schramm Cayetano (Tagalog: [ˈpija kajɛˈtano]; born March 22, 1966) also known as Pia Compañera Cayetano, is a Filipina politician, lawyer, economist, athlete, and television host serving as a Senator since 2019, a position she previously held from 2004 to 2016.

[1] She earned her economics (cum laude) and law degrees at the University of the Philippines, where she played volleyball for the UP Lady Maroons team that won the 1983 UAAP title.

[3] Cayetano is an advocate of sports as part of a holistic youth development program, prevention of diseases, and the need for a healthy and fit lifestyle.

Cayetano is a mother to two daughters, Maxine and Nadine, and a son Gabriel, who died from complications of a rare chromosomal disorder in 2001.

[6] She is a member of Young Entrepreneurs' Organization and a spokesperson of the Philippine Cancer Society and the Universal Birth Registration Project.

[citation needed] Cayetano took up Bachelor of Arts in Economics at the University of the Philippines, and graduated cum laude in 1985.

In 2001, she was appointed chairwoman of the Maxi Group of Companies, a retailer and distributor of educational toys, infant apparel and accessories.

On April 17, 2008, she was elected for a two-year term, president of the Committee of Women Parliamentarians of the Inter-Parliamentary Union (IPU) during its 118th General Assembly in Cape Town, South Africa.

[14] Cayetano pushed for the enactment of the ‘Magna Carta of Women’ which seeks to end all forms of gender discrimination, and the ‘Expanded Breastfeeding Act,’ which establishes lactation stations in the workplace to encourage nursing mothers to continue breastfeeding even at work.

Most recently, Senator Cayetano worked for the passage of two landmark laws, the Reproductive Health Act (RA 10354), for which she was the principal sponsor, and the Sin Tax Reform Act (RA 10351) which sought to fund government health programs from tax proceeds from cigarettes and alcohol products.

She was named chair of the Senate Sustainable Development Goals, Innovation and Futures Thinking Committee in 2019.