If you are the caregiver for a young child who is showing signs of delayed speech, you might be wondering: Does a speech delay mean autism? This is an understandable question because speech delays are a common symptom of autism and often one of the early signs (early intervention for autism can be key to better outcomes). However, speech delay alone is not enough to diagnose autism. Speech delays are also common in young children and do not always indicate autism.

Here, we’ll go over everything you need to know about speech delay vs autism, and what to do if you think a child may be experiencing a speech delay, autism, or both. 

Understanding Speech Delay

Before we look into the question of whether a child has a speech delay or autism, it’s necessary to understand what a speech delay is.

A speech and language delay is when a young child isn’t developing speech and language skills at the rate that’s expected for children of their age. Speech delays are common, impacting about 10% of all preschool-aged children. 

Symptoms of Speech Delays

There are many symptoms of delayed speech. When a child has a speech or language delay, they may:

• Have difficulty saying words or phrases
• Show trouble understanding what you are saying
• Experience challenges in turning their thoughts and feelings into understandable language

It’s important to understand that all young children develop speech and language skills at their own unique pace, and parents and caregivers shouldn’t necessarily compare them directly to their peers. Still, some kids who fall behind actually do have a speech delay.

A child’s doctor may be concerned about a speech or language delay when a child:

• Doesn’t say at least three words by 15 months
• Has trouble following simple, one-step instructions by 18 months
• Doesn’t use two-word phrases by the time they are two years old
• Has trouble following two-step instructions by the age of two and a half
• Doesn’t speak well enough to be understood by others by three years old

Be sure to speak with your child’s pediatrician or primary care provider if you notice these signs and symptoms. If you’re feeling unsure about what you’re seeing, getting guidance early can bring clarity and peace of mind.

Causes of Speech Delays in Children

Autism is one potential cause of a speech delay in children, but it’s not the only one. There are several potential causes of speech delays in children besides autism. These can include:

• Hearing loss
• Intellectual disability
• Developmental delays
• Dysarthria (speech disorder caused by neurological damage)
• Cerebral palsy (a neurological disorder caused by brain damage)
• Selective mutism 

While autism isn’t the only cause of speech delay, speech delay is a potential sign of autism. 

Understanding Autism and Language

It can be difficult to determine whether you’re seeing a speech and language delay vs autism. This is an essential question caregivers face, but the answer can get confusing because experiencing speech deficits is common in autistic children. However, not all speech delays mean that a child is autistic.

Speech and Language Delays in Autism

Autism spectrum disorder (ASD) is a neurodevelopmental condition characterized by challenges in communication, social interaction, and behavior. Many children with autism show delays in spoken language, nonverbal communication, and overall social communication skills. In fact, delays in these areas can sometimes be among the first signs that a child might be autistic.

Some common speech and language-related symptoms in autistic children include:

• Not reaching developmentally appropriate language and speech milestones while experiencing speech delays
• Using words to label things, but not having the ability to ask for things
• Using words for objects but not for family members or other people they know
• Echoing and repeating words and phrases, but not using novel language themselves
• Repeating and parroting dialogue from movies, TV, and conversations

Although autism is typically marked by delays in speech and language milestones, some children do meet these milestones during the toddler and preschool years. But you may notice that the way they use language differs from that of their peers. 

For example, they may:

• Talk more like an older child or an adult
• Echo or parrot language frequently
• Use language less for communication and socializing and more for labeling and categorizing. 

If you notice the child in your care is using language differently from their peers, it might be a good idea to speak with their doctor. 

Key Differences: Speech Delay vs Autism

So, is it a speech delay or autism? What’s the difference between autism and a speech delay? This comparison chart helps break down the difference between a speech delay and autism.

Speech Delay Only

• Language is the primary issue
• Development is otherwise on track for their age
• Child tries to communicate through gestures, pointing, or pulling you toward something
• Makes eye contact and responds to their name
• Plays appropriately with toys
• Interested in other children
• May attempt to say words but has trouble pronouncing them correctly

Autism

• Child has a language delay plus social and communication challenges, along with restricted or repetitive behaviors
• May show developmental delays in areas like communication and socialization
• May use limited nonverbal communication, including gesturing and pointing
• Limited eye contact and may not consistently respond to their name
• May play with toys in a repetitive or non-functional way
• Less interested in socializing or interacting with other children
• May echo or repeat words and phrases from TV, movies, or conversations

The Overlap: When It's Both Autism and Speech Delay

You may be wondering: Can you have autism and a speech delay at the same time? The answer is yes, it’s common for children to have both conditions. In fact, research has shown that up to 30% of children with autism experience speech and language delays.

If a child is showing signs of speech delay along with autism, the child must get evaluated and diagnosed for each condition. That’s because treatment is different for speech delays vs autism, and a child’s treatment must be tailored to their specific conditions. 

What to Do If You're Concerned About a Speech Delay

If you are concerned that a child may have a speech delay, autism, or both, you should take them to see their pediatrician. The pediatrician can discuss symptoms, do initial assessments for speech delays and autism, and refer you for an autism screening, a comprehensive autism evaluation, and—if appropriate—a formal diagnosis and autism therapy services.

Speech Delay Diagnosis

If your child shows signs of a speech delay, they will be referred to a speech-language pathologist for an evaluation. They may also be given a hearing test or referred to other specialists to rule out medical conditions affecting their speech and language abilities. The child in your care may also eventually work closely with a speech therapist who can provide speech therapy for autism.

Autism Diagnosis

If a child has signs of autism, they must see a provider who is qualified to diagnose autism—and to understand who can diagnose autism—using the most common autism diagnostic tests, such as ADOS (Autism Diagnostic Observation Schedule), ADI-R (Autism Diagnostic Interview-Revised), and CARS (Childhood Autism Rating Scale) diagnostic tests.

Providers who perform these diagnostics include pediatricians, developmental pediatricians, psychologists, neurologists, and psychiatrists. If you're feeling unsure about what you’re seeing, you don’t have to navigate this alone.

Connect with ACES Today!

How ACES Can Help

When a child has both a speech delay and autism, care must be coordinated among the service providers who work with the child. Coordination of care increases positive outcomes for children who have autism and speech delays.

At ACES, children receive ABA therapy that’s tailored to their strengths and preferences. ACES works closely with speech therapists who provide autism-specific speech therapy. ACES also coordinates with other professionals on a child’s care team, including occupational therapists, neurologists, physical therapists, and mental health professionals.

Not only that, but ACES Client Onboarding can help you get an autism diagnosis, connect you with appropriate services, and help you navigate insurance coverage so you’re not managing the process alone.

The Bottom Line: Is Your Child’s Speech Delay Autism?

Many parents and caregivers of young children showing signs of speech delays want to know if what they’re seeing is a speech delay or autism. When a child has only a speech delay, they show delays in spoken language but not in communication and social skills. When a child has autism, however, they will show signs of speech delay, combined with difficulty communicating nonverbally, socializing, and managing behavior.

Speech delays and autism can also overlap, which is why it’s critical that if a child is showing signs of either or both of these conditions, they receive a diagnosis from a healthcare provider. Once a diagnosis is made, families can move forward with clarity and a treatment plan tailored to their child’s needs.

Navigating diagnoses and treatment plans can be challenging. ACES is here to support families with compassionate, evidence-based, and—above all—comprehensive care.

Get Started with ACES Today

References

Speech and Language Delay. American Academy of Family Physicians. 2026.

Speech and Language Delay in Children. American Academy of Family Physicians. 2023.

3 Early Signs of Autism in Children. American Academy of Pediatrics. 2025.

Tager-Flusberg, H., & Kasari, C. (2013). Minimally verbal school-aged children with autism spectrum disorder: the neglected end of the spectrum. Autism research: official journal of the International Society for Autism Research, 6(6), 468–478.

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