Oops, it doesn't look like 'unfriend a friend day' is a national day..

Other days

lisp

Lisp Day
embarrass your best friend

Embarrass Your Best Friend Day
me

Me Day
artists

Artists Day
ask out your crush

Ask Out Your Crush Day
ride the wind

Ride The Wind Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
ponytail

Ponytail Day
pick me

Pick Me Day
self care

Self Care Day