You can bold the title in Seaborn with the following code. The given example helps you to understand how to bold the title. I highly recommend you “Python Crash Course Book” to learn Python.
Example: Bold title of Seaborn plot
# Import the required libraries
import seaborn as sns
import matplotlib.pyplot as plt
# Load the iris Dataset
iris = sns.load_dataset("iris")
# Plot the Histogram
sns.histplot(data=iris, x="sepal_length")
# Add the bold title
plt.title('Sepal Length Visualization', weight='bold').set_fontsize('15')
# Display the plot
plt.show()Output:



