In short, there are heaps of them, and they all have varying degrees of exposure to US stocks.
Then there are ETFs that have a particular strategy, as well as only investing in US stocks. But you wouldn't know it from the ETF's name — you have to read the ETF fact sheet to find out the geography spread.
Then there are ASX ETFs with international strategies. They hold baskets of stocks that are listed in several different countries, but in most cases, the bulk of them are in the United States. So, that's your primary geographical exposure.
An example is iShares Global 100 ETF, which comprises 77.39% US stocks.
SS Family Fund : also Vanguard VGS