What does 10th cousin once removed mean?

Understanding family relationships aren’t always easy. As families grow and members move around, it can be hard to keep track of who is related to whom. One of the more confusing phrases you might come across is “10th cousin once removed.” Let’s take a closer look at what this phrase means and how it applies to your family tree.

The Basics of Family Relationships

First, let’s review some basics about family relationships. Most people are familiar with immediate family members such as parents, children, siblings, and grandparents. We have aunts, uncles, nieces, nephews, and cousins as well. The further away from our immediate family we get in terms of generations—our great-grandparents or our third cousins—the more distant a relation becomes.

Cousin Once Removed

Now that we know the basics about family relationships, let’s explore what “cousin once removed” means. To understand this term better, let’s break it down into two parts: “cousin” and “once removed.” A cousin is someone who shares an ancestor with you; they are not in your immediate line but they are related by blood somehow.

The phrase “once removed” refers to the number of generations separating you from your cousin; if you are one generation apart from each other then the relationship would be “once removed.” That means that a 10th cousin once removed is someone who is 10 generations away from you in terms of blood relation but only one generation away in terms of physical proximity.

Using 10th Cousin Once Removed As an Example

In some cases, 10th cousins once removed may never even meet because there are too many generations separating them! To use an example: Your great-great-great-great-great grandfather had three brothers — his first cousins — so if one of those brothers had children then those children would be your second cousins (removed).

If one of those second cousins had children then those children would be third cousins (also removed); fourth cousins (removed) for their children; fifth cousins (removed) for their children; sixth cousins (removed) for their children; seventh cousins (removed) for their children; eighth cousins (removed) for their children; ninth cousins (removed) for their children; and tenth cousins once removed for their respective grandchildren! This may seem confusing at first but hopefully it helps provide some insight into how distant relations work within a family tree!


As genealogy has become more popular over recent years, understanding how far apart relatives may be has also become more important. With that understanding has come new terminology such as “10th cousin once removed,” which describes how many generations separate two relatives while noting one generation’s physical proximity to the other relative in question. By breaking down this term into its component parts—cousin and once removed—we now have an easier way to discuss distant relatives within our own families!


1. What does 10th cousin once removed mean?

10th cousin once removed means that two relatives are separated by ten generations, but only one generation physically apart from each other. This may be helpful in understanding family relationships and how people are related within a large family tree.

2. How do I find out if I have 10th cousins once removed?

There are many tools and resources available online that can help you find out more about your family history and connections, including genealogy websites like Ancestry or FamilySearch. You may also want to consult with a professional genealogist who can guide you through the process of researching your family and identifying potential 10th cousins once removed.

3. What benefits do I get from knowing who my 10th cousins once removed are?

Having a better understanding of your family history and how you may be connected to other relatives can provide valuable insights into your own life and identity. For example, you may discover new family stories or traditions, or learn more about your cultural background and heritage. Additionally, it can be fun to explore new connections with distant relatives and stay in touch with them over the years.

If you are interested in exploring your family history and building upon your knowledge of 10th cousins once removed, there are many resources available to help you get started. Whether you consult with a professional genealogist or use online tools to research your family tree, the benefits of learning more about your relatives can be significant and long-lasting.