Yes, there are several Mexican restaurants in Worcester that are open late. Here are a few examples:

1. Taqueria El Patron: Located at 192 Harding St, Taqueria El Patron is known for its authentic Mexican cuisine and late-night hours. They are open until 1 am on weekdays and 2 am on weekends. You can find more information on their official website.
2. Pueblo Viejo: Situated at 368 Park Ave, Pueblo Viejo offers a variety of Mexican dishes and stays open until midnight throughout the week. You can check out their menu and other details on their official website.
3. Mezcal Tequila Cantina: Located at 166 Shrewsbury St, Mezcal Tequila Cantina is another popular choice for late-night Mexican food in Worcester. They are open until 1 am on weekdays and 2 am on weekends. Visit their official website for more information.

These are just a few examples, and there may be other Mexican restaurants in Worcester that offer late-night dining. It's always a good idea to check their websites or call ahead to confirm their hours of operation.

References:

• Taqueria El Patron Official Website
• Pueblo Viejo Official Website
• Mezcal Tequila Cantina Official Website