She was born Mary Louise. Meryl is a nickname given to her by her father.

American actress Meryl Streep was raised in Somerset County, NJ

HOLLYWOOD - JUNE 10: Actress Meryl Streep and her daughters attend the 32nd Annual AFI Life Achievement Award: A Tribute to Meryl Streep on June 10, 2004 at the Kodak Theatre in Hollywood, California.

In 2018, Streep filed an application with the US Trademark Office to trademark her name, according to TMZ. It reportedly cost her $275 to file the application. This is very common amongst Hollywood elite.

HOLLYWOOD, CA - FEBRUARY 26: Actress Meryl Streep accepts the Best Actress Award for 'The Iron Lady' onstage during the 84th Annual Academy Awards held at the Hollywood & Highland Center on February 26, 2012 in Hollywood, California.

She graduated from Vassar College and went on to earn a Master of Fine Arts from Yale School of Drama in 1975.

She is related to the founder of Pennsylvania, William Penn.

Don Gummer and Meryl Streep have four children together, one son and three daughters

A known philanthropist, she auctioned off her wardrobe from the 2006 movie. She donated the proceeds to several charities, including Equality Now, a group that fights for the protection and promotion of the human rights of women and girls.