No, autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD) are two different conditions. They do, however, share some common characteristics and can often occur together.
ASD is a neurodevelopmental disorder that impacts communication, behavior, and social interaction. It is characterized by difficulties in social communication and interaction, restricted interests, and repetitive behaviors.
ADHD is a neurodevelopmental disorder that impacts focus, attention, and behavior. It is characterized by difficulty paying attention, impulsive behaviors, and hyperactivity.
The two conditions have some overlapping symptoms, such as difficulty paying attention and impulsivity, but they are distinct disorders. People with ASD may have difficulty paying attention to certain topics and may be easily distracted, but this is not the same as the inability to focus seen in people with ADHD. People with ADHD may have difficulty regulating their behavior, but this is different from the repetitive behaviors seen in people with ASD.
In addition, people with ASD often have difficulty with social interactions, while people with ADHD may have difficulty with executive functioning, such as organizing tasks and planning ahead.
That said, both conditions can co-occur and it is not uncommon for someone to be diagnosed with both ASD and ADHD. If someone is exhibiting signs of both conditions, they should seek professional help for an accurate diagnosis and treatment.