Illinois Holidays 2023

Check Illinois Public Holidays and Special days observed in the year 2023.

This page provides a complete list of official state and public holidays in Illinois for the year 2023. It includes recognized observances, long weekends, and important dates celebrated across the state. These holidays may affect government offices, schools, and businesses. Stay informed and plan ahead with the full holiday calendar for Illinois.

Illinois, United States
Date Day Holiday Type
Jan. 1, 2023 Sunday New Year's Day National
Jan. 2, 2023 Monday New Year's Day National
Jan. 16, 2023 Monday Martin Luther King Jr. Day National
Jan. 27, 2023 Friday International Day of Commemoration in Memory of the Victims of the Holocaust UN observance
Feb. 12, 2023 Sunday Lincoln's Birthday Local holiday
Feb. 13, 2023 Monday Lincoln's Birthday Local holiday
Feb. 20, 2023 Monday Presidents' Day National
Feb. 22, 2023 Wednesday Ash Wednesday Christian
March 6, 2023 Monday Casimir Pulaski Day Local observance
April 4, 2023 Tuesday United Nations' Mine Awareness Day UN observance
May 6, 2023 Saturday National Nurses Day Observance
May 26, 2023 Friday Shavuot Hebrew
May 29, 2023 Monday Memorial Day National
June 19, 2023 Monday Juneteenth Local observance
July 4, 2023 Tuesday Independence Day National
Sept. 4, 2023 Monday Labor Day National
Sept. 8, 2023 Friday International Literacy Day UN observance
Sept. 23, 2023 Saturday International Celebrate Bisexuality Day Worldwide
Oct. 9, 2023 Monday Columbus Day National
Oct. 16, 2023 Monday Boss's Day Observance
Oct. 21, 2023 Saturday Sweetest Day Observance
Nov. 10, 2023 Friday Marine Corps Birthday Observance
Nov. 10, 2023 Friday Veterans Day observed National
Nov. 11, 2023 Saturday Veterans Day National
Nov. 23, 2023 Thursday Thanksgiving Day National
Nov. 24, 2023 Friday Day After Thanksgiving Local holiday
Dec. 25, 2023 Monday Christmas Day National
Dec. 26, 2023 Tuesday Kwanzaa (first day) Observance