January
- New Years Day – January 1
- Christmas Tree Recycling – Marietta
- Dr. Martin Luther King, Jr. Celebration – Marietta
February
- Daddy Daughter Dance – Marietta
- Born Again Blessings – Children’s Consignment Sale – Marietta
March
- Cobb County Library Book Sale – Marietta
- Document Shredding Day – Marietta
March/April
- Marietta Easter Egg Hunt at Laurel Park – Marietta
- Marietta Easter Egg Hunt – Marietta
April
- Glover Park Concert Series – Marietta Square
- Taste of West Cobb – Marietta
April/May
- Taste of Marietta – Marietta Square
- Yaarab Shrine Circus – Marietta
May
- May-retta Daze Arts & Crafts Festival – Marietta Square
- Brown Bag Concert Series – Marietta Square
June
- Juneteenth Concert – Marietta Square
- Juneteenth Celebration – Marietta Square
- Glover Park Concert Series – Marietta Square
- Cobb Classic Rodeo – Marietta
July
- Fourth of July Parade, Festival, and Fireworks – Marietta Square
- Glover Park Concert Series – Marietta Square
- Sheriff’s Annual Corn Boilin’ – Marietta
August
- Glover Park Concert Series – Marietta
- Cobb Classic Rodeo – Marietta
August / September
- Art in the Park – Marietta Square
September
- Brown Bag Concert Series – Marietta Square
- Marietta Streetfest – Marietta Square
- Glover Park Concert Series – Marietta Square
- North Georgia State Fair – Marietta
- Whole Hawg Happenin’ BBQ & Music Fest – Marietta Square
October
- Cobb Classic Rodeo – Marietta
- Harvest Square Arts & Crafts Festival, Halloween Happenings, and Scarecrows in the Square – Marietta Square
- Junior League of Cobb-Marietta’s Annual Mistletoe Market – Marietta
- Boxerstock – Marietta
- Marietta Zombie Walk – Marietta Square
November
- Veterans Day Parade – Marietta
- Gobble Jog – Marietta
December
- Marietta Square Christmas Tree Lighting – Marietta Square
- Santa in the Square – Marietta Square
- Christmas and Holiday Lights at Life University – Marietta
- Marietta Pilgrimage Christmas Home Tour – Marietta Square Area