#1 for com tam 5 places ranked by how good the vegan version of their com tam tastes, going by Google Maps and HappyCow reviews. Chay Diệu Hoà takes the #1 spot. One place on the list isn't very vegan-friendly overall (grade D or E): reviewers rate the vegan com tam there, but ask for the vegan version when you order.
#1 for com tam 
#2 for com tam “Try the vegan com tam, noted as the best by multiple reviewers.”
“Try the com tam chay, highly praised as the best vegan version of this dish.”
#4 for com tam 
spinach · Vegan Food Guide Take the full com tam-in-Ho Chi Minh City list with you. Filter by hours, save what you want to try, get walking directions on the day.
Chay Diệu Hoà tops our ranking for the best vegan com tam in Ho Chi Minh City. We ranked 5 places in Ho Chi Minh City by how good Google Maps and HappyCow reviewers say the vegan version of their com tam tastes.
This list has 5 places in Ho Chi Minh City that serve vegan com tam. Their average Spinach rating is 4.6 out of 5.0.
Yes. 4 of the 5 places on this list are fully vegan.
The rank is about the dish, not the venue. A place can make some of the best vegan com tam in Ho Chi Minh City and still have few other vegan options, unclear labels or staff who don't know the menu well. That is what the A–E Vegan Friendliness grade on each card measures. 1 of the 5 places here is graded D or E. There, ask for the vegan version when you order.