diff --git a/go.mod b/go.mod
index 7507397498..a648f3f173 100644
--- a/go.mod
+++ b/go.mod
@@ -176,6 +176,7 @@ require (
 	github.com/jgautheron/goconst v1.7.1 // indirect
 	github.com/jingyugao/rowserrcheck v1.1.1 // indirect
 	github.com/jjti/go-spancheck v0.6.4 // indirect
+	github.com/joho/godotenv v1.5.1 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/julz/importas v0.2.0 // indirect
 	github.com/karamaru-alpha/copyloopvar v1.2.1 // indirect
diff --git a/go.sum b/go.sum
index 25938fc8d1..77d2429bb3 100644
--- a/go.sum
+++ b/go.sum
@@ -338,6 +338,8 @@ github.com/jingyugao/rowserrcheck v1.1.1 h1:zibz55j/MJtLsjP1OF4bSdgXxwL1b+Vn7Tjz
 github.com/jingyugao/rowserrcheck v1.1.1/go.mod h1:4yvlZSDb3IyDTUZJUmpZfm2Hwok+Dtp+nu2qOq+er9c=
 github.com/jjti/go-spancheck v0.6.4 h1:Tl7gQpYf4/TMU7AT84MN83/6PutY21Nb9fuQjFTpRRc=
 github.com/jjti/go-spancheck v0.6.4/go.mod h1:yAEYdKJ2lRkDA8g7X+oKUHXOWVAXSBJRv04OhF+QUjk=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
 github.com/julz/importas v0.2.0 h1:y+MJN/UdL63QbFJHws9BVC5RpA2iq0kpjrFajTGivjQ=
diff --git a/pkg/cli/predict.go b/pkg/cli/predict.go
index f2396b5852..8353faf118 100644
--- a/pkg/cli/predict.go
+++ b/pkg/cli/predict.go
@@ -17,6 +17,7 @@ import (
 	"time"
 
 	"github.com/getkin/kin-openapi/openapi3"
+	"github.com/joho/godotenv"
 	"github.com/mitchellh/go-homedir"
 	"github.com/spf13/cobra"
 	"golang.org/x/sys/unix"
@@ -69,10 +70,10 @@ the prediction on that.`,
 	addFastFlag(cmd)
 	addLocalImage(cmd)
 	addConfigFlag(cmd)
+	addEnvFlag(cmd)
 
 	cmd.Flags().StringArrayVarP(&inputFlags, "input", "i", []string{}, "Inputs, in the form name=value. if value is prefixed with @, then it is read from a file on disk. E.g. -i path=@image.jpg")
 	cmd.Flags().StringVarP(&outPath, "output", "o", "", "Output path")
-	cmd.Flags().StringArrayVarP(&envFlags, "env", "e", []string{}, "Environment variables, in the form name=value")
 	cmd.Flags().BoolVar(&useReplicateAPIToken, "use-replicate-token", false, "Pass REPLICATE_API_TOKEN from local environment into the model context")
 	cmd.Flags().StringVar(&inputJSON, "json", "", "Pass inputs as JSON object, read from file (@inputs.json) or via stdin (@-)")
 
@@ -643,3 +644,21 @@ func parseInputFlags(inputs []string, schema *openapi3.T) (predict.Inputs, error
 func addSetupTimeoutFlag(cmd *cobra.Command) {
 	cmd.Flags().Uint32Var(&setupTimeout, "setup-timeout", 5*60, "The timeout for a container to setup (in seconds).")
 }
+
+func addEnvFlag(cmd *cobra.Command) {
+	defaultEnv := []string{}
+
+	// Attempt to fill default environment variables with a .env file
+	exists, _ := files.Exists(".env")
+	if exists {
+		var dotEnv map[string]string
+		dotEnv, err := godotenv.Read()
+		if err == nil {
+			for key, value := range dotEnv {
+				defaultEnv = append(defaultEnv, fmt.Sprintf("%s=%s", key, value))
+			}
+		}
+	}
+
+	cmd.Flags().StringArrayVarP(&envFlags, "env", "e", defaultEnv, "Environment variables, in the form name=value")
+}
diff --git a/test-integration/test_integration/fixtures/env-cli-project/.env b/test-integration/test_integration/fixtures/env-cli-project/.env
new file mode 100644
index 0000000000..92e90afffc
--- /dev/null
+++ b/test-integration/test_integration/fixtures/env-cli-project/.env
@@ -0,0 +1 @@
+TEST_VAR=test_value
diff --git a/test-integration/test_integration/fixtures/env-cli-project/cog.yaml b/test-integration/test_integration/fixtures/env-cli-project/cog.yaml
new file mode 100644
index 0000000000..cdf01d2b46
--- /dev/null
+++ b/test-integration/test_integration/fixtures/env-cli-project/cog.yaml
@@ -0,0 +1 @@
+predict: "predict.py:Predictor"
diff --git a/test-integration/test_integration/fixtures/env-cli-project/predict.py b/test-integration/test_integration/fixtures/env-cli-project/predict.py
new file mode 100644
index 0000000000..6029e472c4
--- /dev/null
+++ b/test-integration/test_integration/fixtures/env-cli-project/predict.py
@@ -0,0 +1,7 @@
+from cog import BasePredictor
+import os
+
+
+class Predictor(BasePredictor):
+    def predict(self, name: str) -> str:
+        return f"ENV[{name}]={os.getenv(name)}"
diff --git a/test-integration/test_integration/test_predict.py b/test-integration/test_integration/test_predict.py
index ff1d4fa626..926e44a922 100644
--- a/test-integration/test_integration/test_predict.py
+++ b/test-integration/test_integration/test_predict.py
@@ -801,3 +801,17 @@ def test_predict_future_annotations(cog_binary):
         timeout=120.0,
     )
     assert result.returncode == 0
+
+
+def test_predict_dotenv(cog_binary):
+    project_dir = Path(__file__).parent / "fixtures/env-cli-project"
+
+    result = subprocess.run(
+        [cog_binary, "predict", "--debug", "-i", "name=TEST_VAR"],
+        cwd=project_dir,
+        capture_output=True,
+        text=True,
+        timeout=120.0,
+    )
+    assert result.returncode == 0
+    assert result.stdout == "ENV[TEST_VAR]=test_value\n"