| Living Nativity | - |
| Living Nativity | 12/09/2022 6:00 p.m. - 8:00 p.m. |
| LIV Golf | - |
| Little Miss Broken Arrow Experience | 09/14/2024 1:00 p.m. - 3:00 p.m. |
| Lions Avenue Drainage Improvements Project; Public Information Meeting | 08/05/2021 6:00 p.m. - 8:00 p.m. |
| Leisure Park in the Park | 05/01/2022 4:00 p.m. - 5:30 p.m. |
| Last Day to Register to Vote for Nov. 8 Elections | 10/14/2022 |
| Labor Day - City offices closed | 09/06/2021 |
| Labor Day - City Offices Closed | 09/07/2020 |
| Korean War Memorial Dedication Ceremony | 03/21/2023 1:00 p.m. - 2:00 p.m. |
| Kneale Family Aquatic Center Opening at R.C. Dickenson YMCA | 05/27/2023 10:00 a.m. - 6:30 p.m. |
| Kids to Parks Day | 05/21/2022 11:00 a.m. - 1:00 p.m. |
| Kids To Park Day- The Lost Dinosaur Scavenger Hunt | 05/21/2022 10:00 a.m. - 7:00 p.m. |
| Kid's Night Out | 10/14/2022 5:00 p.m. - 9:00 p.m. |
| Kenneth Hagin Ministries' Camp meeting 2021 | - |
| Keep Broken Arrow Beautiful's Plant A Rose event | - |
| Junk-in-the-Trunk Car Show (tentative) | 09/30/2023 8:00 a.m. - 4:00 p.m. |
| Junk-in-the-Trunk Car Show | 10/08/2022 8:00 a.m. - 1:00 p.m. |
| Jingle Bell Rock | 12/02/2022 6:30 p.m. - 8:30 p.m. |
| JESSICA VOSK | 03/24/2023 7:30 p.m. - 10:00 p.m. |
