As anok suggested, it would be very helpful to know in what context you're considering these terms, and what aspect of liberal pluralism you're trying to draw an analogy with.
In the meantime here's my attempt at an answer:
The narrow formal definition of liberal pluralism is something along the lines of 'the idea that a liberal democratic state/society should tolerate the existence of 'illiberal' groups that are part of it', but the term 'pluralism' when used in the context of liberalism and/or democracy often just refers to tolerance for the existence of different opinions, groups, values, ideologies, parties etc.
For example, Barack Obama hasn't tried to outlaw the Republican party or send Republicans to prison for being Republicans, doing so would contravene the idea that the plurality of political beliefs within a liberal political system is something that system should uphold as legitimate, and protect.
Of course the protection of liberal pluralism is often unevenly applied, and outright denied to those who reject the legitimacy of liberal democratic state - people like anarchists for example. Just as a side note, the argument that pluralism shouldn't cover groups that seek to undermine pluralism is the basis for the 'no platform for fascists' position.
So is there an anarchist pluralism? Well insofar as anarchists often agree to disagree on stuff and still work together towards common goals, yes; insofar as there being a tolerance for beliefs and behavior that are 'un-anarchist' within groups or communities constructed on anarchist principles, generally no (although that's contingent on what the group defines as anarchist, and the degree of intolerance depends on the group).