diff --git a/pkg/apis/core/types.go b/pkg/apis/core/types.go
index b624561c0d9..765f447cf0c 100644
--- a/pkg/apis/core/types.go
+++ b/pkg/apis/core/types.go
@@ -5503,6 +5503,15 @@ type Preconditions struct {
 	UID *types.UID
 }
 
+const (
+	// LogStreamStdout is the stream type for stdout.
+	LogStreamStdout = "Stdout"
+	// LogStreamStderr is the stream type for stderr.
+	LogStreamStderr = "Stderr"
+	// LogStreamAll represents the combined stdout and stderr.
+	LogStreamAll = "All"
+)
+
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // PodLogOptions is the query options for a Pod's logs REST call
@@ -5529,7 +5538,8 @@ type PodLogOptions struct {
 	// of log output.
 	Timestamps bool
 	// If set, the number of lines from the end of the logs to show. If not specified,
-	// logs are shown from the creation of the container or sinceSeconds or sinceTime
+	// logs are shown from the creation of the container or sinceSeconds or sinceTime.
+	// Note that when "TailLines" is specified, "Stream" can only be set to nil or "All".
 	TailLines *int64
 	// If set, the number of bytes to read from the server before terminating the
 	// log output. This may not display a complete final line of logging, and may return
@@ -5544,6 +5554,14 @@ type PodLogOptions struct {
 	// the actual log data coming from the real kubelet).
 	// +optional
 	InsecureSkipTLSVerifyBackend bool
+
+	// Specify which container log stream to return to the client.
+	// Acceptable values are "All", "Stdout" and "Stderr". If not specified, "All" is used, and both stdout and stderr
+	// are returned interleaved.
+	// Note that when "TailLines" is specified, "Stream" can only be set to nil or "All".
+	// +featureGate=PodLogsQuerySplitStreams
+	// +optional
+	Stream *string
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
diff --git a/staging/src/k8s.io/api/core/v1/types.go b/staging/src/k8s.io/api/core/v1/types.go
index 9f1c3ec6035..fdb28c2fac9 100644
--- a/staging/src/k8s.io/api/core/v1/types.go
+++ b/staging/src/k8s.io/api/core/v1/types.go
@@ -6574,6 +6574,15 @@ type Preconditions struct {
 	UID *types.UID `json:"uid,omitempty" protobuf:"bytes,1,opt,name=uid,casttype=k8s.io/apimachinery/pkg/types.UID"`
 }
 
+const (
+	// LogStreamStdout is the stream type for stdout.
+	LogStreamStdout = "Stdout"
+	// LogStreamStderr is the stream type for stderr.
+	LogStreamStderr = "Stderr"
+	// LogStreamAll represents the combined stdout and stderr.
+	LogStreamAll = "All"
+)
+
 // +k8s:conversion-gen:explicit-from=net/url.Values
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 // +k8s:prerelease-lifecycle-gen:introduced=1.0
@@ -6608,7 +6617,8 @@ type PodLogOptions struct {
 	// +optional
 	Timestamps bool `json:"timestamps,omitempty" protobuf:"varint,6,opt,name=timestamps"`
 	// If set, the number of lines from the end of the logs to show. If not specified,
-	// logs are shown from the creation of the container or sinceSeconds or sinceTime
+	// logs are shown from the creation of the container or sinceSeconds or sinceTime.
+	// Note that when "TailLines" is specified, "Stream" can only be set to nil or "All".
 	// +optional
 	TailLines *int64 `json:"tailLines,omitempty" protobuf:"varint,7,opt,name=tailLines"`
 	// If set, the number of bytes to read from the server before terminating the
@@ -6625,6 +6635,14 @@ type PodLogOptions struct {
 	// the actual log data coming from the real kubelet).
 	// +optional
 	InsecureSkipTLSVerifyBackend bool `json:"insecureSkipTLSVerifyBackend,omitempty" protobuf:"varint,9,opt,name=insecureSkipTLSVerifyBackend"`
+
+	// Specify which container log stream to return to the client.
+	// Acceptable values are "All", "Stdout" and "Stderr". If not specified, "All" is used, and both stdout and stderr
+	// are returned interleaved.
+	// Note that when "TailLines" is specified, "Stream" can only be set to nil or "All".
+	// +featureGate=PodLogsQuerySplitStreams
+	// +optional
+	Stream *string `json:"stream,omitempty" protobuf:"varint,10,opt,name=stream"`
 }
 
 // +k8s:conversion-gen:explicit-from=net/url.Values