Sebastian Iwasaki is a Polish former competitive figure skater. He is the 2010 Polish bronze medalist and 2009 junior national champion. He competed at two World Junior Championships, qualifying for the final segment at the 2010 competition in The Hague. He finished 18th overall in the Netherlands.

The Polish Figure Skating Championships are a figure skating competition held annually to determine the national medalists of Poland. The event has been held annually since 1922. Medals may be awarded in the disciplines of men's singles, women's singles, pair skating, ice dancing, and synchronized skating.