This seems to be a pet theory of somebody named Arnold Sorsby who wrote the article “Noah-an albino” in the British Medical Journal in 1958, which I have not read. The article appears to have been reprinted in a book he edited: Tenements of clay: an anthology of medical biographical essays.
What evidence does Sorsby base his belief on? Also, was The National Organization for Albinism and Hypopigmentation (NOAH) named with this notion in mind?
According to a 1958 newspaper article, Sorsby based his claim on the book of Enoch(Apocrypha) and the Dead Sea scrolls.
He quotes from Enoch: “A body white as snow, hair white as wool and eyes that are like the rays of the sun” (Personally, that could describe ME after a hard night’s drinking!) 
He further claimed that a newly found fragment of a Dead Sea scroll said that Lemech, Noah’s father, was told by his wife that Noah was, indeed the child of Lemech. That evidently proves that Noah’s parents were brother and sister.
Sorsby claimed that the first recorded case of albinism was a result of such a union.
Sorsby was supposedly one of the leading authorities on opthamology in the world. [sub]Or, a kook. Your call.[/sub]
Here’s a snippet from Genesis Chapt. 7 that gives another possible reason for his pale appearance:
*007:006 And Noah was six hundred years old when the flood of waters
was upon the earth.
I’m not following that logic.
From what I could find, the quote is thus:
The above is from Chapter 106 of the Book of Enoch (taken from here).
The curious part is that Noah’s body was supposedly “white as snow”, and “red as the blooming of the rose” (this also repeated in verse 10, except there it becomes “redder than the bloom of a rose”). Not having met many albinos, where does the “red” bit come into play (aside from the eyes)?
the one albino person I’ve met had very pink skin. I assume that the colour came from her blood, because of the lack of pigmentation in her skin.
Kat. I see what you mean.
I didn’t provide the important parts.
From the newspaper story:
Have you any idea why Sorsby made this a pet theory? It must have had some implications that he liked, but what could they possible be?
The theory appears to be used in, ahem, The Da Vinci Code:
If Noah’s parents were siblings, they were, at most, half siblings. And chances are they shared a father, not a mother.
I base this on looking at other couples in the Bible. Abraham and Sarah were half siblings that shared a father. From what little I know about Judaism and the Old Testament, there seems to be something about having shared a womb that would make marrying your half-sibling through your mother taboo, even though in Noah and Abe’s time there were no prohibitions against this.
The particular Dead Sea Scroll is the ‘Genesis Apocryphon’. This is the passage in question.
None of which has any obvious relevance to the question of whether Noah was an albino.