「ラッパ練習中」（ラッパれんしゅうちゅう）は、日本の女性アイドル渡辺麻友の楽曲。楽曲は秋元康が作詞、黒須克彦が作曲した。渡辺の4作目のシングルとして、2013年7月10日にSony Music Recordsから発売された。
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