diff --git a/stable/atlantis/Chart.yaml b/stable/atlantis/Chart.yaml
index 21fb7a8ce5..ffd6f7f611 100644
--- a/stable/atlantis/Chart.yaml
+++ b/stable/atlantis/Chart.yaml
@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "v0.8.2"
 description: A Helm chart for Atlantis https://www.runatlantis.io
 name: atlantis
-version: 3.9.2
+version: 3.10.0
 keywords:
 - terraform
 home: https://www.runatlantis.io
diff --git a/stable/atlantis/README.md b/stable/atlantis/README.md
index b691623c09..eec6abb0d5 100644
--- a/stable/atlantis/README.md
+++ b/stable/atlantis/README.md
@@ -54,6 +54,7 @@ The following options are supported.  See [values.yaml](values.yaml) for more de
 | `extraVolumeMounts`                         | List of additional volumes mounted to the container.                                                                                                                                                                                                                                                      | `[]`    |
 | `imagePullSecrets`                          | List of secrets for pulling images from private registries.                                                                                                                                                                                                                                               | `[]`    |
 | `gitconfig`                                 | Contents of a file to be mounted to `~/.gitconfig`.  Use to allow redirection for Terraform modules in private git repositories.                                                                                                                                                                          | n/a     |
+| `gitconfigSecretName`                       | Name of a pre-existing Kubernetes `Secret` containing a `gitconfig` key. Use this instead of `gitconfig` (optional)                                                                                                                                                                           | n/a     |
 | `command`                                   | Optionally override the [`command` field](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.14/#container-v1-core) of the Atlantis Docker container. If not set, the default Atlantis `ENTRYPOINT` is used. Must be an array.                                                                                                                                  | n/a     |
 | `github.user`                               | Name of the Atlantis GitHub user.                                                                                                                                                                                                                                                                         | n/a     |
 | `github.token`                              | Personal access token for the Atlantis GitHub user.                                                                                                                                                                                                                                                       | n/a     |
diff --git a/stable/atlantis/templates/statefulset.yaml b/stable/atlantis/templates/statefulset.yaml
index 0b877d846e..ea0dc31feb 100644
--- a/stable/atlantis/templates/statefulset.yaml
+++ b/stable/atlantis/templates/statefulset.yaml
@@ -58,6 +58,10 @@ spec:
       - name: gitconfig-volume
         secret:
           secretName: {{ template "atlantis.fullname" . }}-gitconfig
+      {{- else if .Values.gitconfigSecretName }}
+      - name: gitconfig-volume
+        secret:
+          secretName: {{ .Values.gitconfigSecretName }}
       {{- end }}
       {{- if or .Values.aws .Values.awsSecretName}}
       - name: aws-volume
@@ -87,7 +91,7 @@ spec:
         - name: {{ .Chart.Name }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
-          {{- if .Values.gitconfig }}
+          {{- if or .Values.gitconfig .Values.gitconfigSecretName }}
           lifecycle:
             postStart:
               exec:
@@ -249,7 +253,7 @@ spec:
             readOnly: true
             mountPath: /var/secrets/{{ .name }}
           {{- end }}
-          {{- if .Values.gitconfig}}
+          {{- if or .Values.gitconfig .Values.gitconfigSecretName }}
           - name: gitconfig-volume
             readOnly: true
             mountPath: /etc/secret-gitconfig
diff --git a/stable/atlantis/values.yaml b/stable/atlantis/values.yaml
index f2dd3cb265..bcc3dd8063 100644
--- a/stable/atlantis/values.yaml
+++ b/stable/atlantis/values.yaml
@@ -53,6 +53,9 @@ orgWhitelist: <replace-me>
   #   insteadOf = ssh://git@gitlab.com
 # Source: https://stackoverflow.com/questions/42148841/github-clone-with-oauth-access-token
 
+# If managing secrets outside the chart for the gitconfig, use this variable to reference the secret name
+ # gitconfigSecretName: 'mygitconfigsecret'
+
 # To specify AWS credentials to be mapped to ~/.aws:
 # aws:
 #   credentials: |