Is Pantheism Nondualistic?

Generally yes, by examining the excerpt from wikipedia below discussing non-dualism and monism you’ll find that pantheism (which is monotheistic) is non-dualism.

The philosophical concept of monismis similar to nondualism. Some forms of monism hold that all phenomena are actually of the same substance. Other forms of monism including attributive monism and idealism are similar concepts to nondualism. Nondualism proper holds that different phenomena are inseparable or that there is no hard line between them, but not that they are the same. The distinction between these two types of views is considered critical in Zen, Madhyamika, and Dzogchen, all of which are nondualisms proper. Some later philosophical approaches also attempt to undermine traditional dichotomies, with the view they are fundamentally invalid or inaccurate. For example, one typical form ofdeconstruction is the critique of binary oppositions within a text whileproblematizationquestions the context or situation in which concepts such as dualisms occur. **

** from: http://en.wikipedia.org/wiki/Nondualism

Borrowing from the lexicon, you can find the definition of Dualism and nondualism below.

Dualism: The doctrine that reality consists of two basic opposing elements, often taken to be mind and matter (or mind and body), or good and evil. Dualism denotes a state of two parts. The word’s origin is the Latin duo, “two” . The term ‘dualism’ was originally coined to denote co-eternal binary opposition, a meaning that is preserved in metaphysical and philosophical duality discourse but has been diluted in general usage.

Nondualism: Is the implication that things appear distinct while not being separate. The belief that dualism or dichotomy are illusory phenomena; that things such as mind and body may remain distinct while not actually being separate.

It may be debated that Scientific Pantheists are Materialistic Nondualists (the physical Universe is one and all). I believe that Classical Pantheists are Spiritual Nondualists(the spirit/the substance/the force/the conscious Universe is all and one) and Classical Pantheists can be thought of as Spiritual Monotheists as well. The definition of Universe is what varies between them.

It is my personal opinion that Universe, itself is consciousness, or conscious spirit. So am I, so are you, thus all is connected (not separate, ONE), yet distinct. This distinction may be a necessary ilusion for the Universe/god to experience its existence, or perhaps this distinction is solely a product of the ego.  Thinking, words, ideas (such as this article) are also used and created by the ego.  Many people identify as the ego (identify themselves as their ideas, thoughts, beliefs, emotions).   This is my personal opinion as of 2/28/2010. Any addendums will be posted as comments below.

Find up to date definitions of these and other terms in the lexicon

You may find this article interesting Is Pantheism Monotheistic?