How to search for a specific column name in all the tables in MySQL Workbench?
You can use the INFORMATION_SCHEMA database and the COLUMNS table in particular Example of use:

SELECT 
    table_name, 
    column_name, 
    data_type,
    ordinal_position

FROM  INFORMATION_SCHEMA.COLUMNS 

WHERE table_schema = 'myDatabase'     --- the database you want to search 
  AND column_name = 'name' ;          --- or: column_name LIKE '%name%'