1991 in the Philippines

Years in the Philippines:	1988 1989 1990 1991 1992 1993 1994
Centuries:	19th Century · 20th century · 21st century
Decades:	1960s 1970s 1980s 1990s 2000s 2010s 2020s
Years:	1988 1989 1990 1991 1992 1993 1994

1991 in the Philippines details events of note that happened in the Philippines in the year 1991.

Incumbents

January 29 - Merger of the Philippine Constabulary with the Integrated National Police to form the Philippine National Police.
June 15 - Mount Pinatubo erupts in what will be the second largest terrestrial eruption of the 20th century; the final death toll tops 800.
June 30 - The massacre of Estrellita, Carmela, and Jennifer Vizconde. Hubert Webb and the original suspects were released from prison in 2010 after they were acquitted by the Supreme Court.
July 13 - Maureen Hultman and John Chapman were murdered by Claudio Teehankee, Jr.. The case was controversial as Teehankee is the son of a former Chief Justice.
September 13 - The Senate of the Philippines rejects the bi-lateral treaty with United States which would have extended American use of Subic Bay Naval Base. American troops earlier abandoned Clark Air Base after Pinatubo erupted, and completed their withdrawal from Subic in 1992.