diff --git a/config/src/main/java/org/springframework/security/config/annotation/web/builders/HttpSecurity.java b/config/src/main/java/org/springframework/security/config/annotation/web/builders/HttpSecurity.java
index ea44de22bf..2e0b6534d1 100644
--- a/config/src/main/java/org/springframework/security/config/annotation/web/builders/HttpSecurity.java
+++ b/config/src/main/java/org/springframework/security/config/annotation/web/builders/HttpSecurity.java
@@ -3758,7 +3758,6 @@ public final class HttpSecurity extends AbstractConfiguredSecurityBuilder<Defaul
 	 * 		http
 	 * 			// ...
 	 * 			.webAuthn((webAuthn) -&gt; webAuthn
-	 * 				.rpName("Spring Security Relying Party")
 	 * 				.rpId("example.com")
 	 * 				.allowedOrigins("https://example.com")
 	 * 			);
diff --git a/config/src/main/java/org/springframework/security/config/annotation/web/configurers/WebAuthnConfigurer.java b/config/src/main/java/org/springframework/security/config/annotation/web/configurers/WebAuthnConfigurer.java
index 7ec3279efb..b1c3ce32bf 100644
--- a/config/src/main/java/org/springframework/security/config/annotation/web/configurers/WebAuthnConfigurer.java
+++ b/config/src/main/java/org/springframework/security/config/annotation/web/configurers/WebAuthnConfigurer.java
@@ -243,9 +243,10 @@ public class WebAuthnConfigurer<H extends HttpSecurityBuilder<H>>
 			PublicKeyCredentialUserEntityRepository userEntities, UserCredentialRepository userCredentials) {
 		Optional<WebAuthnRelyingPartyOperations> webauthnOperationsBean = getBeanOrNull(
 				WebAuthnRelyingPartyOperations.class);
-		return webauthnOperationsBean.orElseGet(() -> new Webauthn4JRelyingPartyOperations(userEntities,
-				userCredentials, PublicKeyCredentialRpEntity.builder().id(this.rpId).name(this.rpName).build(),
-				this.allowedOrigins));
+		String rpName = (this.rpName != null) ? this.rpName : this.rpId;
+		return webauthnOperationsBean
+			.orElseGet(() -> new Webauthn4JRelyingPartyOperations(userEntities, userCredentials,
+					PublicKeyCredentialRpEntity.builder().id(this.rpId).name(rpName).build(), this.allowedOrigins));
 	}
 
 }
diff --git a/config/src/test/java/org/springframework/security/config/annotation/web/configurers/WebAuthnConfigurerTests.java b/config/src/test/java/org/springframework/security/config/annotation/web/configurers/WebAuthnConfigurerTests.java
index db96afd6ec..6dffd8b3e8 100644
--- a/config/src/test/java/org/springframework/security/config/annotation/web/configurers/WebAuthnConfigurerTests.java
+++ b/config/src/test/java/org/springframework/security/config/annotation/web/configurers/WebAuthnConfigurerTests.java
@@ -19,6 +19,8 @@ package org.springframework.security.config.annotation.web.configurers;
 import java.nio.charset.StandardCharsets;
 import java.util.List;
 
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 
@@ -52,6 +54,8 @@ import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.BDDMockito.given;
 import static org.mockito.BDDMockito.willAnswer;
 import static org.mockito.Mockito.mock;
+import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.authentication;
+import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.csrf;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
@@ -127,6 +131,42 @@ public class WebAuthnConfigurerTests {
 			.hasSize(1);
 	}
 
+	@Test
+	void webauthnWhenConfiguredDefaultsRpNameToRpId() throws Exception {
+		ObjectMapper mapper = new ObjectMapper();
+		this.spring.register(DefaultWebauthnConfiguration.class).autowire();
+		String response = this.mvc
+			.perform(post("/webauthn/register/options").with(csrf())
+				.with(authentication(new TestingAuthenticationToken("test", "ignored", "ROLE_user"))))
+			.andExpect(status().is2xxSuccessful())
+			.andReturn()
+			.getResponse()
+			.getContentAsString();
+
+		JsonNode parsedResponse = mapper.readTree(response);
+
+		assertThat(parsedResponse.get("rp").get("id").asText()).isEqualTo("example.com");
+		assertThat(parsedResponse.get("rp").get("name").asText()).isEqualTo("example.com");
+	}
+
+	@Test
+	void webauthnWhenRpNameConfiguredUsesRpName() throws Exception {
+		ObjectMapper mapper = new ObjectMapper();
+		this.spring.register(CustomRpNameWebauthnConfiguration.class).autowire();
+		String response = this.mvc
+			.perform(post("/webauthn/register/options").with(csrf())
+				.with(authentication(new TestingAuthenticationToken("test", "ignored", "ROLE_user"))))
+			.andExpect(status().is2xxSuccessful())
+			.andReturn()
+			.getResponse()
+			.getContentAsString();
+
+		JsonNode parsedResponse = mapper.readTree(response);
+
+		assertThat(parsedResponse.get("rp").get("id").asText()).isEqualTo("example.com");
+		assertThat(parsedResponse.get("rp").get("name").asText()).isEqualTo("Test RP Name");
+	}
+
 	@Test
 	public void webauthnWhenConfiguredAndFormLoginThenDoesServesJavascript() throws Exception {
 		this.spring.register(FormLoginAndNoDefaultRegistrationPageConfiguration.class).autowire();
@@ -300,7 +340,27 @@ public class WebAuthnConfigurerTests {
 
 		@Bean
 		SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
-			return http.formLogin(Customizer.withDefaults()).webAuthn(Customizer.withDefaults()).build();
+			return http.formLogin(Customizer.withDefaults())
+				.webAuthn((webauthn) -> webauthn.rpId("example.com"))
+				.build();
+		}
+
+	}
+
+	@Configuration
+	@EnableWebSecurity
+	static class CustomRpNameWebauthnConfiguration {
+
+		@Bean
+		UserDetailsService userDetailsService() {
+			return new InMemoryUserDetailsManager();
+		}
+
+		@Bean
+		SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
+			return http.formLogin(Customizer.withDefaults())
+				.webAuthn((webauthn) -> webauthn.rpId("example.com").rpName("Test RP Name"))
+				.build();
 		}
 
 	}
diff --git a/docs/modules/ROOT/pages/servlet/authentication/passkeys.adoc b/docs/modules/ROOT/pages/servlet/authentication/passkeys.adoc
index 0ccbf18cc1..06b81941af 100644
--- a/docs/modules/ROOT/pages/servlet/authentication/passkeys.adoc
+++ b/docs/modules/ROOT/pages/servlet/authentication/passkeys.adoc
@@ -65,7 +65,6 @@ SecurityFilterChain filterChain(HttpSecurity http) {
 		// ...
 		.formLogin(withDefaults())
 		.webAuthn((webAuthn) -> webAuthn
-			.rpName("Spring Security Relying Party")
 			.rpId("example.com")
 			.allowedOrigins("https://example.com")
 			// optional properties
@@ -96,7 +95,6 @@ open fun filterChain(http: HttpSecurity): SecurityFilterChain {
 	// ...
 	http {
 		webAuthn {
-			rpName = "Spring Security Relying Party"
 			rpId = "example.com"
 			allowedOrigins = setOf("https://example.com")
 			// optional properties