In Django, how do i change "This field is required." to "Name is required"?

An easy way to specify simple "required" validation messages is to pass the field the error_messages argument.

name = forms.CharField(error_messages={'required': 'Your Name is Required'}) 

Check the docs for which keys can be specified per field: http://docs.djangoproject.com/en/dev/ref/forms/fields/#django.forms.Field.error_messages

For anything else, you're going to need real form validation which means you'd be writing error messages anyways!

If you want to customize the message a little bit more you can also:

from django.core.exceptions import ValidationError

def my_validator(value):
    if not len(value):
        raise ValidationError('Your error message here!')

Then, in your models.py:

from django import forms

class MyForm(forms.Form):
    my_field= forms.CharField(validators=[my_validator])