Oranda Shogatsu was a celebration of the new year on the first day of the new Solar year (the Gregorian calendar) by the Dutch who were living on Dejima, Nagasaki and by Rangakusha (a person who studied Western sciences by means of the Dutch language) in Edo (Tokyo) in the Edo period.
オランダ正月（-しょうがつ）は、江戸時代に長崎の出島在住のオランダ人たちや、江戸の蘭学者たちによって行われた、太陽暦（グレゴリオ暦）による正月元日を祝う宴である。