| Club: | Chattanooga FC |
| Season: | 2021 |
| Chrtitle: | Managing director |
| Chairman: | Jeremy Alumbaugh |
| Mgrtitle: | Head coach |
| Manager: | Peter Fuller |
| Stadium: | Finley Stadium Chattanooga, Tennessee |
| League: | NISA |
| League Result: | TBD |
| Highest Attendance: | 2,916 (Aug. 7 vs. STU) |
| Lowest Attendance: | 1,960 (Sept. 18 vs. SDG) |
| Average Attendance: | 2,198 |
| Largest Win: | CFC 3–0 MAR (Aug. 21) |
| Largest Loss: | NAM 2–1 CFC (Aug. 14) |
| Pattern Ra1: | _chatta_home_2021 |
| Pattern B1: | _chatta_home_2021 |
| Pattern La1: | _chatta_home_2021 |
| Pattern Sh1: | _chatta_home_2021 |
| Pattern So1: | _chatta_home_2021 |
| Pattern Ra2: | _chatta_away_2021 |
| Pattern B2: | _chatta_away_2021 |
| Pattern La2: | _chatta_away_2021 |
| Pattern Sh2: | _chatta_away_2021 |
| Pattern So2: | _chatta_away_2021 |
| Leftarm1: | FFF |
| Leftarm2: | FFF |
| Body1: | FFF |
| Body2: | FFF |
| Rightarm1: | FFF |
| Rightarm2: | FFF |
| Shorts1: | FFF |
| Shorts2: | FFF |
| Socks1: | 05234a |
| Socks2: | FFF |
| American: | true |
| Prevseason: | 2020–21 |
| Nextseason: | 2022 |
The Fall 2021 Chattanooga FC season was the club's third professional season playing in the National Independent Soccer Association and 14th overall since being established in 2009.
| Pos. | Player | Signed from | Details | Date | Source | |
|---|---|---|---|---|---|---|
| 28 |  North Georgia Soccer Academy | Academy contract | July 2021 | [1] | ||
| 17 | Tormenta FC | Academy contract | August 13, 2021 | [2] | ||
| Pos. | Player | Signed by | Details | Date | Source | |
|---|---|---|---|---|---|---|
| 5 | Unattached | Not re-signed | July 6 | [3] | ||
| 8 | Unattached | Not re-signed | July 6 | [4] | ||
| 17 | Unattached | Not re-signed | July 26 | [5] | ||
| 51 | Chattanooga Red Wolves Academy | Not re-signed | ||||
Details for the 2021 NISA Independent Cup were released on June 10.[6] Chattanooga were placed in the Southeast Region for the second straight year along with three United Premier Soccer League teams; Savannah Clovers FC, Soda City FC (both of which took part in the 2020 edition), and 2020 Fall UPSL Champion Atletico Atlanta.
Chattanooga won the regional title for a second straight season after two matches following a win at Savanah and a tie between Soda City and Atlanta.[7] [8]
Details regarding the Fall season were released on June 16.[9]
|-! colspan="14" style="background:#dcdcdc; text-align:center"| Goalkeepers|-! colspan="18" style="background:#dcdcdc; text-align:center"| Defenders|-! colspan="18" style="background:#dcdcdc; text-align:center"| Midfielders|-! colspan="18" style="background:#dcdcdc; text-align:center"| Forwards|-|}
| width=60 | Place | width=60 | Position | width=60 | Nation | width=60 | Number | width=150 | Name | width=150 | Regular season |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | FW |  | 9 | Markus Naglestad | 2 | ||||||
| FW | | 17 | Daniel Jackson | 2 | |||||||
| FW | | 20 | Brett Jones | 2 | |||||||
| FW | | 24 | Sean Hoffstatter | 2 | |||||||
| 2 | MF | 10 | Juan Hernandez | 1 | |||||||
| FW | | 14 | Brian Bement | 1 | |||||||
| Number | Nation | Position | Name | Regular season | |
| 3 | | DF | Shaun Russell | 2 | 0 |
| 4 |  | DF | Richard Dixon | 1 | 1 |
| 7 | | MF | Tate Robertson | 2 | 0 |
| 10 | MF | Juan Hernandez | 2 | 0 | |
| 14 | | FW | Brian Bement | 1 | 0 |
| 21 | | DF | James Kasak | 2 | 0 |
| 22 | | MF | Cameron Woodfin | 1 | 0 |
| 23 | | GK | Nick Nelson | 1 | 0 |
| 31 | | MF | Alec McKinley | 3 | 0 |