This study surveys problems with English language teaching and learning and the professional development (PD)
needs of high-school teachers in three provinces of three Secondary Educational Service Areas in Thailand. Both
closed-and open-ended questionnaires were employed. The data was analyzed by frequency distribution and
percentage; the problems and PD needs are herein presented from highest to lowest ranking. The study’s results
may possibly be generalized so that local organizations and institutions of higher education can provide
appropriate assistance and improve the English teaching situation in Thailand in general.