“三角债”是人们对企业之间超过托收承付期或约定付款期应当付而未付的拖欠货款的俗称，是企业之间拖欠货款所形成的连锁债务关系。 通常由甲企业欠乙企业的债，乙企业欠丙企业的债，丙企业又欠甲企业的债以及与此类似的债务关系构成。 是一种无秩的开放的债务链。

“三角债”可译为chaindebts或triangular debt。

Triangular debt arises when delayed or partial payments leave companies owing money to each other and to their banks. It discourages production and investment and the resulting liabilities or bad loans can put a damper on growth and exacerbate financial risks.

In the early 1990s, following a bout of monetary tightening designed to rein in inflation, triangular debt affected a third of bank loans.