diff --git a/CHANGELOG.md b/CHANGELOG.md
index e83ff2ab771..3ec7fa4527a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - `EventOption` and the related `NewEventConfig` function are added to the `go.opentelemetry.io/otel` package to configure Span events. (#1254)
 - A `TextMapPropagator` and associated `TextMapCarrier` are added to the `go.opentelemetry.io/otel/oteltest` package to test TextMap type propagators and their use. (#1259)
 - `SpanContextFromContext` returns `SpanContext` from context. (#1255)
+- `DeploymentEnvironmentKey` added to `go.opentelemetry.io/otel/semconv` package. (#1323)
 - Add an opencensus to opentelemetry tracing bridge. (#1305)
 - Add a parent context argument to `SpanProcessor.OnStart` to follow the specification. (#1333)
 
diff --git a/semconv/resource.go b/semconv/resource.go
index 8a1ec6db9a3..59a326d27aa 100644
--- a/semconv/resource.go
+++ b/semconv/resource.go
@@ -219,3 +219,9 @@ var (
 	CloudProviderAzure = CloudProviderKey.String("azure")
 	CloudProviderGCP   = CloudProviderKey.String("gcp")
 )
+
+// Semantic conventions for deployment attributes.
+const (
+	// Name of the deployment environment (aka deployment tier); e.g. (staging, production).
+	DeploymentEnvironmentKey = label.Key("deployment.environment")
+)