Combine the corn kernels, halved cherry tomatoes, and thinly sliced red onion in a large bowl.
Add the chopped cilantro to the vegetable mixture.
In a small bowl, whisk together the lime juice and olive oil until emulsified.
Pour the dressing over the salad ingredients and season with salt and freshly ground black pepper to taste.
Toss gently until all ingredients are evenly coated with the dressing.
Let the salad rest for 5 minutes to allow flavors to meld together.
Serve chilled or at room temperature.