diff --git a/index.d.ts b/index.d.ts
index 1fb94bfe52b..4f1ee96d644 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -827,7 +827,7 @@ declare namespace tracer {
      * @param value The amount to increment the stat by.
      * @param tags Tags to pass along, such as `{ foo: 'bar' }`. Values are combined with config.tags.
      */
-    increment(stat: string, value?: number, tags?: Record<string, string|number>): void
+    increment(stat: string, value?: number, tags?: Record<string, string|number|Array<string|number>>): void
 
     /**
      * Decrements a metric by the specified value, optionally specifying tags.
@@ -835,7 +835,7 @@ declare namespace tracer {
      * @param value The amount to decrement the stat by.
      * @param tags Tags to pass along, such as `{ foo: 'bar' }`. Values are combined with config.tags.
      */
-    decrement(stat: string, value?: number, tags?: Record<string, string|number>): void
+    decrement(stat: string, value?: number, tags?: Record<string, string|number|Array<string|number>>): void
 
     /**
      * Sets a distribution value, optionally specifying tags.
@@ -843,7 +843,7 @@ declare namespace tracer {
      * @param value The amount to increment the stat by.
      * @param tags Tags to pass along, such as `{ foo: 'bar' }`. Values are combined with config.tags.
      */
-    distribution(stat: string, value?: number, tags?: Record<string, string|number>): void
+    distribution(stat: string, value?: number, tags?: Record<string, string|number|Array<string|number>>): void
 
     /**
      * Sets a gauge value, optionally specifying tags.
@@ -851,7 +851,7 @@ declare namespace tracer {
      * @param value The amount to increment the stat by.
      * @param tags Tags to pass along, such as `{ foo: 'bar' }`. Values are combined with config.tags.
      */
-    gauge(stat: string, value?: number, tags?: Record<string, string|number>): void
+    gauge(stat: string, value?: number, tags?: Record<string, string|number|Array<string|number>>): void
 
     /**
      * Sets a histogram value, optionally specifying tags.
@@ -859,7 +859,7 @@ declare namespace tracer {
      * @param value The amount to increment the stat by.
      * @param tags Tags to pass along, such as `{ foo: 'bar' }`. Values are combined with config.tags.
      */
-    histogram(stat: string, value?: number, tags?: Record<string, string|number>): void
+    histogram(stat: string, value?: number, tags?: Record<string, string|number|Array<string|number>>): void
 
     /**
      * Forces any unsent metrics to be sent
diff --git a/packages/dd-trace/src/dogstatsd.js b/packages/dd-trace/src/dogstatsd.js
index a8e60782d90..5e4404fa21f 100644
--- a/packages/dd-trace/src/dogstatsd.js
+++ b/packages/dd-trace/src/dogstatsd.js
@@ -390,7 +390,14 @@ class CustomMetrics {
     if (!objTags) return arrTags
 
     for (const [key, value] of Object.entries(objTags)) {
-      arrTags.push(`${key}:${value}`)
+      if (!Array.isArray(value)) {
+        arrTags.push(`${key}:${value}`)
+        continue
+      }
+
+      for (const val of value) {
+        arrTags.push(`${key}:${val}`)
+      }
     }
 
     return arrTags
diff --git a/packages/dd-trace/test/dogstatsd.spec.js b/packages/dd-trace/test/dogstatsd.spec.js
index 67525a1024d..bac402efcc2 100644
--- a/packages/dd-trace/test/dogstatsd.spec.js
+++ b/packages/dd-trace/test/dogstatsd.spec.js
@@ -378,6 +378,7 @@ describe('dogstatsd', () => {
       client = new CustomMetrics({ dogstatsd: {} })
 
       client.gauge('test.avg', 10, { foo: 'bar' })
+      client.gauge('test.avg', 10, { foo: ['bar', 'baz'] })
       client.gauge('test.avg', 10, { foo: 'bar', baz: 'qux' })
       client.gauge('test.avg', 20, { foo: 'bar', baz: 'qux' })
       client.flush()
@@ -385,6 +386,7 @@ describe('dogstatsd', () => {
       expect(udp4.send).to.have.been.called
       expect(udp4.send.firstCall.args[0].toString()).to.equal([
         'test.avg:10|g|#foo:bar',
+        'test.avg:10|g|#foo:bar,foo:baz',
         'test.avg:20|g|#foo:bar,baz:qux'
       ].join('\n') + '\n')
     })
@@ -415,6 +417,7 @@ describe('dogstatsd', () => {
       client = new CustomMetrics({ dogstatsd: {} })
 
       client.increment('test.count', 10, { foo: 'bar' })
+      client.increment('test.count', 10, { foo: ['bar', 'baz'] })
       client.increment('test.count', 10, { foo: 'bar', baz: 'qux' })
       client.increment('test.count', 10, { foo: 'bar', baz: 'qux' })
       client.flush()
@@ -422,6 +425,7 @@ describe('dogstatsd', () => {
       expect(udp4.send).to.have.been.called
       expect(udp4.send.firstCall.args[0].toString()).to.equal([
         'test.count:10|c|#foo:bar',
+        'test.count:10|c|#foo:bar,foo:baz',
         'test.count:20|c|#foo:bar,baz:qux'
       ].join('\n') + '\n')
     })
@@ -483,6 +487,7 @@ describe('dogstatsd', () => {
       client = new CustomMetrics({ dogstatsd: {} })
 
       client.histogram('test.histogram', 10, { foo: 'bar' })
+      client.histogram('test.histogram', 10, { foo: ['bar', 'baz'] })
       client.histogram('test.histogram', 10, { foo: 'bar', baz: 'qux' })
       client.histogram('test.histogram', 10, { foo: 'bar', baz: 'qux' })
       client.flush()
@@ -497,14 +502,21 @@ describe('dogstatsd', () => {
         'test.histogram.count:1|c|#foo:bar',
         'test.histogram.median:10.074696689511441|g|#foo:bar',
         'test.histogram.95percentile:10.074696689511441|g|#foo:bar',
+        'test.histogram.min:10|g|#foo:bar,foo:baz',
+        'test.histogram.max:10|g|#foo:bar,foo:baz',
+        'test.histogram.sum:10|c|#foo:bar,foo:baz',
+        'test.histogram.total:10|c|#foo:bar,foo:baz',
+        'test.histogram.avg:10|g|#foo:bar,foo:baz',
+        'test.histogram.count:1|c|#foo:bar,foo:baz',
+        'test.histogram.median:10.074696689511441|g|#foo:bar,foo:baz',
+        'test.histogram.95percentile:10.074696689511441|g|#foo:bar,foo:baz',
         'test.histogram.min:10|g|#foo:bar,baz:qux',
         'test.histogram.max:10|g|#foo:bar,baz:qux',
         'test.histogram.sum:20|c|#foo:bar,baz:qux',
         'test.histogram.total:20|c|#foo:bar,baz:qux',
         'test.histogram.avg:10|g|#foo:bar,baz:qux',
         'test.histogram.count:2|c|#foo:bar,baz:qux',
-        'test.histogram.median:10.074696689511441|g|#foo:bar,baz:qux',
-        'test.histogram.95percentile:10.074696689511441|g|#foo:bar,baz:qux'
+        'test.histogram.median:10.074696689511441|g|#foo:bar,baz:qux'
       ].join('\n') + '\n')
     })