The 49-year-old dad and celebrity chef said prior to the ban, he had failed to attend a series of meetings with the school.
“Then when I actually went to the next one with my youngest, Tilly, I asked the headmaster for a selfie, after which I got kicked out, and so I really f***ed that one up,” he told Vegas magazine.
Ramsay, who is dad to Megan, 17, 16-year-old twins Jack and Holly, and Tilly, 14, with his wife Tana, received an email from the school the following day.
“It said: ‘Can you please refrain from the next parents evening - we do not need the presence of Mr Ramsay’,” he added.
Earlier this year Ramsay broke the sad news that Tana had suffered a miscarriage.
“We had a devastating weekend as Tana has sadly miscarried our son at five months,” he wrote on Facebook in June.
“We’re together healing as a family, but we want to thank everyone again for all your amazing support and well wishes.”