If you're looking to invest for the long haul, exchange-traded funds (ETFs) offer an incredibly simple yet effective way to grow your wealth.

Rather than trying to time the market or hand-pick winning stocks, ETFs give you instant diversification and exposure to powerful investment themes.

Here are three exciting ASX ETFs that long-term investors might consider buying and holding for the next decade.

Betashares Global Robotics and Artificial Intelligence ETF (ASX: RBTZ)

It is fair to say that the robotics and artificial intelligence megatrend is only just getting started. And with the Betashares Global Robotics and Artificial Intelligence ETF, investors can gain targeted exposure to global companies leading the charge in automation, machine learning, and advanced robotics.

Its portfolio includes names like Nvidia (NASDAQ: NVDA) and Keyence. These are businesses with strong growth trajectories tied to the increasing adoption of AI across industries. From healthcare and logistics to defence and consumer tech, the use cases for robotics and AI are multiplying fast.

With this ASX ETF, investors gain access to a global basket of innovation leaders without needing to pick individual stocks. If you believe AI will reshape the future, this could be one fund to tuck away for 2035 and beyond. Betashares recently tipped it as one to buy.

Betashares Asia Technology Tigers ETF (ASX: ASIA)

Asia is home to some of the fastest-growing technology companies in the world. The Betashares Asia Technology Tigers ETF gives investors easy access to top Asian tech tigers including Tencent Holdings, TSMC (NYSE: TSM), PDD Holdings (NASDAQ: PDD), and Alibaba (NYSE: BABA).

These companies are not only dominant in their home markets but are also expanding their global influence. While the sector can be volatile—especially with regulatory changes and geopolitical tensions—the long-term growth potential of Asia's tech industry remains compelling.

For those looking to add some international flavour and high-growth potential to their portfolio, this fund is worth considering.

Betashares Global Cybersecurity ETF (ASX: HACK)

Finally, as the digital world continues to expand, so too does the threat of cybercrime. That's where the Betashares Global Cybersecurity ETF comes in.

This fund provides investors with exposure to a portfolio of leading cybersecurity companies such as Palo Alto Networks (NASDAQ: PANW), Fortinet (NASDAQ: FTNT), and CrowdStrike (NASDAQ: CRWD).

With cyber threats escalating in frequency and sophistication, businesses across the globe are allocating more resources to digital security. This ASX ETF taps into that growing demand – and gives investors a seat at the table in one of the most important tech trends of the next decade.