diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPDeductionGuideTemplate.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPDeductionGuideTemplate.java
new file mode 100644
index 00000000000..7b235b6c0cb
--- /dev/null
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPDeductionGuideTemplate.java
@@ -0,0 +1,47 @@
+/*******************************************************************************
+ * Copyright (c) 2023 Igor V. Kovalenko.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     Igor V. Kovalenko - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.core.dom.parser.cpp;
+
+import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
+import org.eclipse.cdt.core.dom.ast.IBinding;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPFunction;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateDefinition;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateParameter;
+
+/**
+ * Represents c++17 deduction guide template.
+ */
+public class CPPDeductionGuideTemplate extends CPPDeductionGuide
+		implements ICPPTemplateDefinition, ICPPTemplateParameterOwner {
+
+	public CPPDeductionGuideTemplate(IASTDeclarator fnDecl, ICPPFunction functionBinding) {
+		super(fnDecl, functionBinding);
+	}
+
+	@Override
+	public ICPPTemplateParameter[] getTemplateParameters() {
+		if (functionBinding instanceof ICPPTemplateDefinition template) {
+			return template.getTemplateParameters();
+		}
+		return null;
+	}
+
+	@Override
+	public IBinding resolveTemplateParameter(ICPPTemplateParameter param) {
+		if (functionBinding instanceof ICPPTemplateParameterOwner owner) {
+			return owner.resolveTemplateParameter(param);
+		}
+		return null;
+	}
+}
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPVisitor.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPVisitor.java
index 9822da4813d..24da67a469f 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPVisitor.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPVisitor.java
@@ -214,6 +214,7 @@
 import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPConstructor;
 import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPConstructorTemplate;
 import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPDeductionGuide;
+import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPDeductionGuideTemplate;
 import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPEnumeration;
 import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPEnumerator;
 import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPField;
@@ -999,7 +1000,8 @@ private static IBinding createBinding(IASTDeclarator declarator) {
 			}
 
 			if (isDeductionGuide) {
-				binding = new CPPDeductionGuide(typeRelevantDtor, (ICPPFunction) binding);
+				binding = template ? new CPPDeductionGuideTemplate(typeRelevantDtor, (ICPPFunction) binding)
+						: new CPPDeductionGuide(typeRelevantDtor, (ICPPFunction) binding);
 			} else {
 				binding = CPPSemantics.checkDeclSpecifier(binding, name, parent);
 
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPLinkage.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPLinkage.java
index 2b48a268e21..c8e44fcdd2f 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPLinkage.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPLinkage.java
@@ -853,7 +853,7 @@ PDOMBinding createBinding(PDOMNode parent, IBinding binding, long fileLocalRec)
 				pdomBinding = new PDOMCPPMethod(this, parent, (ICPPMethod) binding);
 			}
 		} else if (binding instanceof ICPPDeductionGuide guide) {
-			if (guide.getFunctionBinding() instanceof ICPPFunctionTemplate) {
+			if (guide instanceof ICPPTemplateDefinition) {
 				pdomBinding = new PDOMCPPDeductionGuideTemplate(this, parent, guide);
 			} else {
 				pdomBinding = new PDOMCPPDeductionGuide(this, parent, guide);
@@ -1145,7 +1145,7 @@ else if (binding instanceof ICPPTemplateNonTypeParameter)
 			// this must be before functions
 			return CPPMETHOD;
 		} else if (binding instanceof ICPPDeductionGuide guide) {
-			if (guide.getFunctionBinding() instanceof ICPPFunctionTemplate) {
+			if (guide instanceof ICPPTemplateDefinition) {
 				return CPP_DEDUCTION_GUIDE_TEMPLATE;
 			} else {
 				return CPP_DEDUCTION_GUIDE;