Rinse the corn under cold water if using canned corn.
In a large mixing bowl, combine the corn, halved cherry tomatoes, and diced bell pepper.
Add the finely chopped red onion and fresh cilantro.
In a small bowl, whisk together lime juice and olive oil.
Pour the dressing over the salad ingredients.
Season with salt and pepper to taste.
Toss all ingredients gently to combine.
Let the salad sit for 10 minutes to allow flavors to meld.
Adjust seasoning if necessary before serving.
Serve chilled or at room temperature.