The theme park has gone through a difficult year following the crash of its Smiler roller-coaster.
Most of the jobs would go through voluntary redundancy, retirement, redeployment, and jobs not being filled.
On June 2, the Smiler coaster crashed seriously injuring five people and leading to the closure of the park for four days.
Merlin said it had seen an 11.4% drop in revenue.
The company said in a statement: ‘Alton Towers Resort is operating in the very dynamic and competitive leisure industry which is seeing increasingly rapid change, primarily fuelled by new technologies and ever higher visitor expectations.
‘The business therefore needs a modern, flexible structure which reflects this requirement for a reactive and customer focused approach. The review also looked at the impact on the business of the devastating incident on “The Smiler” ride in June, which resulted in reduced visitation, particularly over the key summer months.
‘Regretfully however, it may result in the loss of up to 190 salaried jobs across the Resort. We anticipate some of these will be accounted for by a programme of non-replacement of existing vacancies, early retirement, redeployment elsewhere in the group, and voluntary redundancy. As soon as employee representatives have been appointed a consultation period will begin.’