diff --git a/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/reactive/server/WebFluxTags.java b/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/reactive/server/WebFluxTags.java
index 993676c5bc7..0229f32298f 100644
--- a/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/reactive/server/WebFluxTags.java
+++ b/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/reactive/server/WebFluxTags.java
@@ -21,6 +21,7 @@ import io.micrometer.core.instrument.Tag;
 import org.springframework.http.HttpStatus;
 import org.springframework.util.StringUtils;
 import org.springframework.web.reactive.HandlerMapping;
+import org.springframework.web.reactive.function.server.RouterFunctions;
 import org.springframework.web.server.ServerWebExchange;
 import org.springframework.web.util.pattern.PathPattern;
 
@@ -86,7 +87,9 @@ public final class WebFluxTags {
 
 	/**
 	 * Creates a {@code uri} tag based on the URI of the given {@code exchange}. Uses the
-	 * {@link HandlerMapping#BEST_MATCHING_PATTERN_ATTRIBUTE} best matching pattern.
+	 * {@link HandlerMapping#BEST_MATCHING_PATTERN_ATTRIBUTE} best matching pattern from
+	 * WebFlux annotation or {@link RouterFunctions#MATCHING_PATTERN_ATTRIBUTE} from
+	 * WebFlux Fn.
 	 * @param exchange the exchange
 	 * @return the uri tag derived from the exchange
 	 */
@@ -96,6 +99,11 @@ public final class WebFluxTags {
 		if (pathPattern != null) {
 			return Tag.of("uri", pathPattern.getPatternString());
 		}
+		String matchingPattern = exchange
+				.getAttribute(RouterFunctions.MATCHING_PATTERN_ATTRIBUTE);
+		if (matchingPattern != null) {
+			return Tag.of("uri", matchingPattern);
+		}
 		HttpStatus status = exchange.getResponse().getStatusCode();
 		if (status != null) {
 			if (status.is3xxRedirection()) {
diff --git a/spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/web/reactive/server/WebFluxTagsTests.java b/spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/web/reactive/server/WebFluxTagsTests.java
index 83d042239c2..989dc7e3bcb 100644
--- a/spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/web/reactive/server/WebFluxTagsTests.java
+++ b/spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/web/reactive/server/WebFluxTagsTests.java
@@ -25,6 +25,7 @@ import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.mock.http.server.reactive.MockServerHttpRequest;
 import org.springframework.mock.web.server.MockServerWebExchange;
 import org.springframework.web.reactive.HandlerMapping;
+import org.springframework.web.reactive.function.server.RouterFunctions;
 import org.springframework.web.server.ServerWebExchange;
 import org.springframework.web.util.pattern.PathPatternParser;
 
@@ -58,6 +59,15 @@ public class WebFluxTagsTests {
 		assertThat(tag.getValue()).isEqualTo("/spring");
 	}
 
+	@Test
+	public void uriTagValueIsFnMatchingPatternWhenAvailable() {
+		this.exchange.getAttributes().put(RouterFunctions.MATCHING_PATTERN_ATTRIBUTE,
+				"/spring");
+		this.exchange.getResponse().setStatusCode(HttpStatus.MOVED_PERMANENTLY);
+		Tag tag = WebFluxTags.uri(this.exchange);
+		assertThat(tag.getValue()).isEqualTo("/spring");
+	}
+
 	@Test
 	public void uriTagValueIsRedirectionWhenResponseStatusIs3xx() {
 		this.exchange.getResponse().setStatusCode(HttpStatus.MOVED_PERMANENTLY);